Polygon Helios A8X - Ultegra Di2 Carbon Road Bike

Description
Components
Geometry
Assembly

Description

PERFORMANCE AERO

The Polygon Helios A8X is a UCI-approved carbon aero race bike weighing just 7.9kg, this machine is engineered for speed and performance. Whether you’re an aspiring racer chasing the podium or seeking an aerodynamic lightweight ride, the Helios A8X delivers the speed and agility you need to beat PRs and the competition.

LOOKS FAST, FEELS FASTER.

The Helios A8X ACX carbon frame, weighing a mere 800g, is meticulously designed for aerodynamic efficiency, boasting a 31% reduction in drag over the previous generation. Wider clearance for 28c tyres enhances comfort without sacrificing speed, while reinforcements in the bottom bracket, chainstay, and thru-axles ensure that every watt of your effort translates into pure speed on the road.

A TRUSTED BRAND

Polygon boasts over 30 years of experience and is known for offering high-performance bikes at competitive prices. Polygon road bikes have led to numerous national titles and even a victory at the 2023 Tour De Taiwan. With a 5-year warranty, you can trust Polygon to deliver from the factory to the track.

INDUSTRY REVIEWS

"Best value for money road bike I’ve seen" - Cam Nicholls

SHIMANO ULTEGRA Di2 GROUPSET

Di2 electronic shifting provides lightning-fast, precise gear changes with a simple touch of the levers. Conquer any terrain, from challenging climbs to swift descents, with the wide-range 11-34T cassette and versatile 52/36T chainrings.

CARBON WHEELS

Suited to undulating terrain, the Entity WR5 50mm carbon wheels offer a fast yet comfortable riding experience and come wrapped in Schwalbe ONE 28mm TLE/race-ready tyres.

INTEGRATED BARS

The fully integrated Vision Metron cockpit strikes the perfect balance between simplicity and aero engineering. It features an inbuilt GPS mount and full carbon construction.

Components

FRAMESET

FRAME

ACX Performance UCI Approved, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc

SUSPENSION

FORK

ACX Performance UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc

DRIVETRAIN

REAR DERAILLEUR

Shimano Ultegra Di2 RD-R8150, 12-Speed

FRONT DERAILLEUR

Shimano Ultegra Di2 FD-R8150, Braze-On

SHIFTER

Shimano Ultegra Di2 ST-R8170, 12-Speed

CRANK

Shimano Ultegra FC-R8100, HollowTech 2, 12-Speed

CHAINRING

52/36T

CASSETTE

Shimano Ultegra CS-R8100, 12-Speed, 11-34T

CHAIN

Shimano CN-M8100, 12-Speed

BRAKES

WHEELS

CONTACT POINTS

WEIGHT

Specs are subject to change based on availability.

Geometry

Assembly

Compare this bike

Siskiu D6 SE

$1,099.99

Description

The Polygon Siskiu D6 is a versatile full-suspension xc/trail bike designed for riders seeking performance and value. Featuring 120mm of travel, Shimano Deore 1x10 drivetrain with a wide 11-42T cassette, dropper post, and hydraulic disc brakes, it's ready to hit some singletrack!
FRAMESET

frame

ALX XC Trail Frame BSA Threaded 73mm Internal
headset

N/A
SUSPENSION

fork

Suntour XCM Boost 120mm Travel, Preload Adjuster, Lockout, Rebound Adjust 15X110mm Q-loc Thru Axle
shock

Suntour Raidon Lo, Air Spring, Lockout, 190x45mm
DRIVETRAIN

rear derailleur

Shimano Deore RD-M5120 Direct Attach 10-Speed
front derailleur

N/A
shifter

Shimano Deore SL-M4100, 10-Speed Trigger
crank

Shimano Deore FC-M5100-1 32T Two-Piece-Crank
chainring

N/A
cassette

Shimano Deore CS-M4100 10-42T 10-Speed
chain

KMC X10-1, 10-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano MT-201 Hydraulic Disc Brake, 180mm Rotor
rear brake

Shimano MT-201 Hydraulic Disc Brake, 160mm Rotor
rotor

N/A
WHEELS

front hub

Shimano HB-Mt400-B, 32H, Center Lock, 15x110mm
rear hub

Shimano FB-Mt400-B, 32H, Center Lock, 12x148mm
rim

X-15, 32H, Tubeless Ready
tyre

Entity Spiderbait 27.5x2.25" / 29x2.25
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

N/A
seatpost

Rage-I Dropper 150mm (S/M) / 170mm (L/XL)
handlebar

ENTITY SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 12mm, B: 6degree
grips

Included
stem

Enitity Sport Alloy 45mm 31.8mm 0 Degree
pedals

Included
WEIGHT

bike weight

35lbs (Size L)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Helios A8X

$4,199.99

Description

The A8X comes equipped with the latest Shimano Ultegra Di2 hydro disc groupset, aerodynamic 50mm carbon TL wheels, a Vision Metron integrated cockpit and a lightweight UCI-approved carbon frame with a stunning paint job, all weighing in at 7.9kg.
FRAMESET

frame

ACX Performance UCI Approved, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc
headset

N/A
SUSPENSION

fork

ACX Performance UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc
shock

N/A
DRIVETRAIN

rear derailleur

Shimano Ultegra Di2 RD-R8150, 12-Speed
front derailleur

Shimano Ultegra Di2 FD-R8150, Braze-On
shifter

Shimano Ultegra Di2 ST-R8170, 12-Speed
crank

Shimano Ultegra FC-R8100, HollowTech 2, 12-Speed
chainring

52/36T
cassette

Shimano Ultegra CS-R8100, 12-Speed, 11-34T
chain

Shimano CN-M8100, 12-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano Ultegra BR-R8170, Hydraulic Disc, 160mm Center Lock
rear brake

Shimano Ultegra BR-R8170, Hydraulic Disc, 140mm Center Lock
rotor

N/A
WHEELS

front hub

Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes
rear hub

Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes
rim

Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Tubeless Tape Installed
tyre

Schwalbe One Addix TLE, 700x28C
max tyre size

N/A
inner tube

80mm Presta Valve
CONTACT POINTS

saddle

Entity Flux2
seatpost

Polygon Aero Carbon Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset
handlebar

Vision Metron 5D ACR Integrated, 400mm Width (XS-S), 420mm Width (M-L), 420mm (XL), 80mm Reach, 125mm Drop
grips

N/A
stem

Vision Metron 5D ACR Integrated, 100mm Length (XS-S), 110mm Length (M-L), 120mm Length (XL), 6-Degree
pedals

N/A
WEIGHT

bike weight

17.4lbs (Size L)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Relic 24

$499.99

Description

The Polygon Relic 24” features a lightweight AL6 aluminum frame, Zoom HL 60mm suspension fork, Shimano Tourney 1x8-speed, disc brakes, and VeeTire Co. XCV tires.
FRAMESET

frame

AL6 Alloy Youth, 24" Wheels, IS Seatstay Disc Mount, 135mm Dropouts
headset

N/A
SUSPENSION

fork

Zoom HL, 60mm Travel, Alloy Crown & Lower, Coil Spring, Straight 1-1/8" Steerer, QR x 100mm
shock

Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
DRIVETRAIN

rear derailleur

Shimano RD-TX800-SGS, Direct Attach
front derailleur

N/A
shifter

Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
crank

Prowheel A105PP 32T, 152mm
chainring

N/A
cassette

Shimano HG200, 8 Speed, 12-32T
chain

KMC Z-8.3
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
rear brake

Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
rotor

N/A
WHEELS

front hub

Alloy, 32H, QR, 6-Bolt
rear hub

Alloy, 32H, QR, 6-Bolt, 135mm Spacing
rim

Alloy, Double-Wall, Disc Specific, 32H
tyre

Vee XCV 24 x 2.10"
max tyre size

24 x 2.3" (26 x 2.3" if the wheelset is upgraded to 26")
inner tube

N/A
CONTACT POINTS

saddle

Polygon Kids
seatpost

27.2x300mm, 16mm Offset, Alloy
handlebar

640mm, Steel
grips

Slip-on Rubber, L:110mm R:72mm
stem

40mm, Steel
pedals

Kids Specific Nylon Pedal
WEIGHT

bike weight

21.16 lbs
battery weight

N/A
ACCESSORIES

kick stand

Alloy Centre Mount
fender mudguard

N/A
assembly tools

N/A

Shop Now

Premier 24 XC

$349.99

Description

The Polygon Premier 24” XC features a lightweight aluminum frame, Suntour Suspension, Shimano Tourney 1x7-Speed, V-brakes and Kenda Small Block 8 tires.
FRAMESET

frame

AL6 6061 Aluminium, Kids Specific Geometry, 135mm Rear Hub, Replaceable Derailleur Hanger
headset

N/A
SUSPENSION

fork

Suntour M3010, 50mm Suspension Travel, Soft-Tuned Coil Spring
shock

N/A
DRIVETRAIN

rear derailleur

Shimano Tourney RD-TZ31A, 7-Speed
front derailleur

N/A
shifter

Shimano Tourney SL-RS25, Revo Shifter with Optical Gear Display, 7-Speed
crank

Prowheel A102PP Alloy Arms, 3/32" Steel Chainring with Plastic Double Chain Guard, 32T
chainring

N/A
cassette

7-Speed Freewheel 14-28T
chain

KMC HV500, 7-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
rear brake

Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
rotor

N/A
WHEELS

front hub

Alloy nutted 3/8" 26 TPI, 100mm Spacing
rear hub

Alloy nutted 3/8" 26 TPI, 135mm Spacing
rim

Alloy Double Wall, CNC brake surface with wear indicator, 19mm Internal Width, 28H
tyre

Kenda K1153 All-Terrain, 24x1.75"
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

Entity Saddle
seatpost

Alloy, 27.2mm
handlebar

Alloy Riser, 30mm Rise
grips

Slip-on Rubber, L:110mm R:72mm
stem

Alloy 4-bolt, 25.4mm Bar Bore
pedals

Kids Specific Nylon Pedal
WEIGHT

bike weight

N/A
battery weight

N/A
ACCESSORIES

kick stand

Alloy Centre Mount
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu T8

$1,799.99

Description

The Polygon Siskiu T8 is the ultimate all-mountain shredder, boasting 135/140mm of travel, a playful trail geometry, and a capable Fox Float DPS/34 Rhythm suspension combo. Shimano's SLX 12-speed drivetrain and 4-piston brakes deliver reliable performance for conquering any trail.
FRAMESET

frame

ALX Trail 6061 Aluminium Frame, One Piece Unibody Pivot Bridge 140/135mm Travel (27.5"/29"), Dropper Post and Rear Derailleur Routing, Direct Post-Mount Disc Brake, 148x12mm Boost Thru-Axle, Threaded BB, ISCG 05 Tabs
headset

N/A
SUSPENSION

fork

Fox 34 Rhythm, Grip Damper, Rebound & Sweep Adjust, 150/140mm Travel (27.5"/29"), 110x15mm Kabolt Boost Axle
shock

Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm
DRIVETRAIN

rear derailleur

Shimano SLX RD-M7100, 12-Speed
front derailleur

N/A
shifter

Shimano SLX SL-M7100, 12-Speed
crank

Shimano FC-MT-510-1
chainring

32T
cassette

Sunrace CSMZ-800, 11-51T, 12-Speed
chain

KMC X-12
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
rear brake

Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
rotor

N/A
WHEELS

front hub

Novatec D791SB, 15X110mm
rear hub

Novatec D442SB, 12x148mm, HG Freehub, 32h, Center Lock*
rim

Entity XL2 Disc 35-584 (27.5”) / 35-622 (29”), 35mm Inner, Tubeless Ready
tyre

VeeTire Flow Snap, Tackle Compound | Schwalbe Hans Dampf ADDIX Speed Grip, 27.5x2.6" / 29x2.6", Tubeless Ready
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

Entity
seatpost

KS RAGE-I, Size S-M 150mm Travel, Size L-XL 170mm Travel, Zero Offset, 30.9mm Polygon Seat Clamp
handlebar

Entity Xpert, Alloy, 780mm wide, 35mm Diameter
grips

Polygon Lock On
stem

Entity Xpert, Alloy, 35mm length, 35mm Clamping Diameter
pedals

Alloy Flat Pedal w/Replaceable Pin and Reflector
WEIGHT

bike weight

33.5 lbs (Size M 29)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu D24

$899.99

Description

The Polygon Siskiu D24 is the perfect full-suspension mountain bike for young riders ready to conquer the trails. Upgraded for 2024 with hydraulic disc brakes, this bike also boasts a lightweight frame, adjustable air suspension, and reliable components - it's built for fun and progression.
FRAMESET

frame

ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle
headset

N/A
SUSPENSION

fork

Suntour Raidon 32, Air Spring, 120mm Travel, Rebound, Lockout, Q-LOC2 Axle 15x100mm
shock

Suntour Raidon R, Air Spring, Rebound, Custom Tune
DRIVETRAIN

rear derailleur

Microshift Acolyte RD-M5185M, Medium Cage, Clutch
front derailleur

N/A
shifter

Microshift Acolyte Trigger SL-M7180M, 1x8-speed
crank

Prowheel C10Y-NW, 30T, 140mm
chainring

N/A
cassette

Microshift Acolyte CS-H083, 8-speed, 12-42T
chain

KMC Z8
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Tektro HD-J285, Hydraulic Disc, 160mm Rotor
rear brake

Tektro HD-J285, Hydraulic Disc, 160mm Rotor
rotor

N/A
WHEELS

front hub

Entity Sealed Bearing, 15mm Thru-Axle, 110mm spacing
rear hub

Entity Sealed Beaing, 12mm Thru-Axle, 142mm spacing
rim

Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed
tyre

Vee Tire Flow Snap 24X2.4", Natural Wall, Wire Bead, Tackee Compound (Non-Tubeless)
max tyre size

F: 26” | R: 24”
inner tube

N/A
CONTACT POINTS

saddle

Entity MTB Kids
seatpost

Entity Sport, Alloy, 30.9x250mm
handlebar

Entity Sport, Alloy, Width: 640mm, Rise: 20mm
grips

N/A
stem

Entity Sport, Alloy, Length: 40mm, BB: 31.8mm
pedals

N/A
WEIGHT

bike weight

N/A
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu D6 SE

$1,099.99
- Description
  
  The Polygon Siskiu D6 is a versatile full-suspension xc/trail bike designed for riders seeking performance and value. Featuring 120mm of travel, Shimano Deore 1x10 drivetrain with a wide 11-42T cassette, dropper post, and hydraulic disc brakes, it's ready to hit some singletrack!
- FRAMESET
  
  frame
  
  ALX XC Trail Frame BSA Threaded 73mm Internal
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour XCM Boost 120mm Travel, Preload Adjuster, Lockout, Rebound Adjust 15X110mm Q-loc Thru Axle
  shock
  
  Suntour Raidon Lo, Air Spring, Lockout, 190x45mm
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Deore RD-M5120 Direct Attach 10-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano Deore SL-M4100, 10-Speed Trigger
  crank
  
  Shimano Deore FC-M5100-1 32T Two-Piece-Crank
  chainring
  
  N/A
  cassette
  
  Shimano Deore CS-M4100 10-42T 10-Speed
  chain
  
  KMC X10-1, 10-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano MT-201 Hydraulic Disc Brake, 180mm Rotor
  rear brake
  
  Shimano MT-201 Hydraulic Disc Brake, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Shimano HB-Mt400-B, 32H, Center Lock, 15x110mm
  rear hub
  
  Shimano FB-Mt400-B, 32H, Center Lock, 12x148mm
  rim
  
  X-15, 32H, Tubeless Ready
  tyre
  
  Entity Spiderbait 27.5x2.25" / 29x2.25
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  N/A
  seatpost
  
  Rage-I Dropper 150mm (S/M) / 170mm (L/XL)
  handlebar
  
  ENTITY SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 12mm, B: 6degree
  grips
  
  Included
  stem
  
  Enitity Sport Alloy 45mm 31.8mm 0 Degree
  pedals
  
  Included
- WEIGHT
  
  bike weight
  
  35lbs (Size L)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Helios A8X

$4,199.99
- Description
  
  The A8X comes equipped with the latest Shimano Ultegra Di2 hydro disc groupset, aerodynamic 50mm carbon TL wheels, a Vision Metron integrated cockpit and a lightweight UCI-approved carbon frame with a stunning paint job, all weighing in at 7.9kg.
- FRAMESET
  
  frame
  
  ACX Performance UCI Approved, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  ACX Performance UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc
  shock
  
  N/A
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Ultegra Di2 RD-R8150, 12-Speed
  front derailleur
  
  Shimano Ultegra Di2 FD-R8150, Braze-On
  shifter
  
  Shimano Ultegra Di2 ST-R8170, 12-Speed
  crank
  
  Shimano Ultegra FC-R8100, HollowTech 2, 12-Speed
  chainring
  
  52/36T
  cassette
  
  Shimano Ultegra CS-R8100, 12-Speed, 11-34T
  chain
  
  Shimano CN-M8100, 12-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano Ultegra BR-R8170, Hydraulic Disc, 160mm Center Lock
  rear brake
  
  Shimano Ultegra BR-R8170, Hydraulic Disc, 140mm Center Lock
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes
  rear hub
  
  Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes
  rim
  
  Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Tubeless Tape Installed
  tyre
  
  Schwalbe One Addix TLE, 700x28C
  max tyre size
  
  N/A
  inner tube
  
  80mm Presta Valve
- CONTACT POINTS
  
  saddle
  
  Entity Flux2
  seatpost
  
  Polygon Aero Carbon Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset
  handlebar
  
  Vision Metron 5D ACR Integrated, 400mm Width (XS-S), 420mm Width (M-L), 420mm (XL), 80mm Reach, 125mm Drop
  grips
  
  N/A
  stem
  
  Vision Metron 5D ACR Integrated, 100mm Length (XS-S), 110mm Length (M-L), 120mm Length (XL), 6-Degree
  pedals
  
  N/A
- WEIGHT
  
  bike weight
  
  17.4lbs (Size L)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Relic 24

$499.99
- Description
  
  The Polygon Relic 24” features a lightweight AL6 aluminum frame, Zoom HL 60mm suspension fork, Shimano Tourney 1x8-speed, disc brakes, and VeeTire Co. XCV tires.
- FRAMESET
  
  frame
  
  AL6 Alloy Youth, 24" Wheels, IS Seatstay Disc Mount, 135mm Dropouts
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Zoom HL, 60mm Travel, Alloy Crown & Lower, Coil Spring, Straight 1-1/8" Steerer, QR x 100mm
  shock
  
  Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
- DRIVETRAIN
  
  rear derailleur
  
  Shimano RD-TX800-SGS, Direct Attach
  front derailleur
  
  N/A
  shifter
  
  Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
  crank
  
  Prowheel A105PP 32T, 152mm
  chainring
  
  N/A
  cassette
  
  Shimano HG200, 8 Speed, 12-32T
  chain
  
  KMC Z-8.3
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
  rear brake
  
  Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Alloy, 32H, QR, 6-Bolt
  rear hub
  
  Alloy, 32H, QR, 6-Bolt, 135mm Spacing
  rim
  
  Alloy, Double-Wall, Disc Specific, 32H
  tyre
  
  Vee XCV 24 x 2.10"
  max tyre size
  
  24 x 2.3" (26 x 2.3" if the wheelset is upgraded to 26")
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Polygon Kids
  seatpost
  
  27.2x300mm, 16mm Offset, Alloy
  handlebar
  
  640mm, Steel
  grips
  
  Slip-on Rubber, L:110mm R:72mm
  stem
  
  40mm, Steel
  pedals
  
  Kids Specific Nylon Pedal
- WEIGHT
  
  bike weight
  
  21.16 lbs
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  Alloy Centre Mount
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Premier 24 XC

$349.99
- Description
  
  The Polygon Premier 24” XC features a lightweight aluminum frame, Suntour Suspension, Shimano Tourney 1x7-Speed, V-brakes and Kenda Small Block 8 tires.
- FRAMESET
  
  frame
  
  AL6 6061 Aluminium, Kids Specific Geometry, 135mm Rear Hub, Replaceable Derailleur Hanger
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour M3010, 50mm Suspension Travel, Soft-Tuned Coil Spring
  shock
  
  N/A
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Tourney RD-TZ31A, 7-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano Tourney SL-RS25, Revo Shifter with Optical Gear Display, 7-Speed
  crank
  
  Prowheel A102PP Alloy Arms, 3/32" Steel Chainring with Plastic Double Chain Guard, 32T
  chainring
  
  N/A
  cassette
  
  7-Speed Freewheel 14-28T
  chain
  
  KMC HV500, 7-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
  rear brake
  
  Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Alloy nutted 3/8" 26 TPI, 100mm Spacing
  rear hub
  
  Alloy nutted 3/8" 26 TPI, 135mm Spacing
  rim
  
  Alloy Double Wall, CNC brake surface with wear indicator, 19mm Internal Width, 28H
  tyre
  
  Kenda K1153 All-Terrain, 24x1.75"
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity Saddle
  seatpost
  
  Alloy, 27.2mm
  handlebar
  
  Alloy Riser, 30mm Rise
  grips
  
  Slip-on Rubber, L:110mm R:72mm
  stem
  
  Alloy 4-bolt, 25.4mm Bar Bore
  pedals
  
  Kids Specific Nylon Pedal
- WEIGHT
  
  bike weight
  
  N/A
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  Alloy Centre Mount
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Siskiu T8

$1,799.99
- Description
  
  The Polygon Siskiu T8 is the ultimate all-mountain shredder, boasting 135/140mm of travel, a playful trail geometry, and a capable Fox Float DPS/34 Rhythm suspension combo. Shimano's SLX 12-speed drivetrain and 4-piston brakes deliver reliable performance for conquering any trail.
- FRAMESET
  
  frame
  
  ALX Trail 6061 Aluminium Frame, One Piece Unibody Pivot Bridge 140/135mm Travel (27.5"/29"), Dropper Post and Rear Derailleur Routing, Direct Post-Mount Disc Brake, 148x12mm Boost Thru-Axle, Threaded BB, ISCG 05 Tabs
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Fox 34 Rhythm, Grip Damper, Rebound & Sweep Adjust, 150/140mm Travel (27.5"/29"), 110x15mm Kabolt Boost Axle
  shock
  
  Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm
- DRIVETRAIN
  
  rear derailleur
  
  Shimano SLX RD-M7100, 12-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano SLX SL-M7100, 12-Speed
  crank
  
  Shimano FC-MT-510-1
  chainring
  
  32T
  cassette
  
  Sunrace CSMZ-800, 11-51T, 12-Speed
  chain
  
  KMC X-12
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
  rear brake
  
  Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Novatec D791SB, 15X110mm
  rear hub
  
  Novatec D442SB, 12x148mm, HG Freehub, 32h, Center Lock*
  rim
  
  Entity XL2 Disc 35-584 (27.5”) / 35-622 (29”), 35mm Inner, Tubeless Ready
  tyre
  
  VeeTire Flow Snap, Tackle Compound | Schwalbe Hans Dampf ADDIX Speed Grip, 27.5x2.6" / 29x2.6", Tubeless Ready
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity
  seatpost
  
  KS RAGE-I, Size S-M 150mm Travel, Size L-XL 170mm Travel, Zero Offset, 30.9mm Polygon Seat Clamp
  handlebar
  
  Entity Xpert, Alloy, 780mm wide, 35mm Diameter
  grips
  
  Polygon Lock On
  stem
  
  Entity Xpert, Alloy, 35mm length, 35mm Clamping Diameter
  pedals
  
  Alloy Flat Pedal w/Replaceable Pin and Reflector
- WEIGHT
  
  bike weight
  
  33.5 lbs (Size M 29)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Siskiu D24

$899.99
- Description
  
  The Polygon Siskiu D24 is the perfect full-suspension mountain bike for young riders ready to conquer the trails. Upgraded for 2024 with hydraulic disc brakes, this bike also boasts a lightweight frame, adjustable air suspension, and reliable components - it's built for fun and progression.
- FRAMESET
  
  frame
  
  ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour Raidon 32, Air Spring, 120mm Travel, Rebound, Lockout, Q-LOC2 Axle 15x100mm
  shock
  
  Suntour Raidon R, Air Spring, Rebound, Custom Tune
- DRIVETRAIN
  
  rear derailleur
  
  Microshift Acolyte RD-M5185M, Medium Cage, Clutch
  front derailleur
  
  N/A
  shifter
  
  Microshift Acolyte Trigger SL-M7180M, 1x8-speed
  crank
  
  Prowheel C10Y-NW, 30T, 140mm
  chainring
  
  N/A
  cassette
  
  Microshift Acolyte CS-H083, 8-speed, 12-42T
  chain
  
  KMC Z8
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Tektro HD-J285, Hydraulic Disc, 160mm Rotor
  rear brake
  
  Tektro HD-J285, Hydraulic Disc, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Entity Sealed Bearing, 15mm Thru-Axle, 110mm spacing
  rear hub
  
  Entity Sealed Beaing, 12mm Thru-Axle, 142mm spacing
  rim
  
  Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed
  tyre
  
  Vee Tire Flow Snap 24X2.4", Natural Wall, Wire Bead, Tackee Compound (Non-Tubeless)
  max tyre size
  
  F: 26” | R: 24”
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity MTB Kids
  seatpost
  
  Entity Sport, Alloy, 30.9x250mm
  handlebar
  
  Entity Sport, Alloy, Width: 640mm, Rise: 20mm
  grips
  
  N/A
  stem
  
  Entity Sport, Alloy, Length: 40mm, BB: 31.8mm
  pedals
  
  N/A
- WEIGHT
  
  bike weight
  
  N/A
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now

Polygon Helios A8X - Ultegra Di2 Carbon Road Bike

Name: Polygon Helios A8X - Ultegra Di2 Carbon Road Bike
Brand: Polygon
SKU: AIBPX28A8X3SG1
Price: 4199.99 USD
Availability: OutOfStock

$4,199.99 ~~$4,699.99~~

Short Description

The A8X comes equipped with the latest Shimano Ultegra Di2 hydro disc groupset, aerodynamic 50mm carbon TL wheels, a Vision Metron integrated cockpit and a lightweight UCI-approved carbon frame with a stunning paint job, all weighing in at 7.9kg.

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Compare this bike

Siskiu D6 SE

$1,099.99

Description

The Polygon Siskiu D6 is a versatile full-suspension xc/trail bike designed for riders seeking performance and value. Featuring 120mm of travel, Shimano Deore 1x10 drivetrain with a wide 11-42T cassette, dropper post, and hydraulic disc brakes, it's ready to hit some singletrack!
FRAMESET

frame

ALX XC Trail Frame BSA Threaded 73mm Internal
headset

N/A
SUSPENSION

fork

Suntour XCM Boost 120mm Travel, Preload Adjuster, Lockout, Rebound Adjust 15X110mm Q-loc Thru Axle
shock

Suntour Raidon Lo, Air Spring, Lockout, 190x45mm
DRIVETRAIN

rear derailleur

Shimano Deore RD-M5120 Direct Attach 10-Speed
front derailleur

N/A
shifter

Shimano Deore SL-M4100, 10-Speed Trigger
crank

Shimano Deore FC-M5100-1 32T Two-Piece-Crank
chainring

N/A
cassette

Shimano Deore CS-M4100 10-42T 10-Speed
chain

KMC X10-1, 10-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano MT-201 Hydraulic Disc Brake, 180mm Rotor
rear brake

Shimano MT-201 Hydraulic Disc Brake, 160mm Rotor
rotor

N/A
WHEELS

front hub

Shimano HB-Mt400-B, 32H, Center Lock, 15x110mm
rear hub

Shimano FB-Mt400-B, 32H, Center Lock, 12x148mm
rim

X-15, 32H, Tubeless Ready
tyre

Entity Spiderbait 27.5x2.25" / 29x2.25
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

N/A
seatpost

Rage-I Dropper 150mm (S/M) / 170mm (L/XL)
handlebar

ENTITY SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 12mm, B: 6degree
grips

Included
stem

Enitity Sport Alloy 45mm 31.8mm 0 Degree
pedals

Included
WEIGHT

bike weight

35lbs (Size L)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Helios A8X

$4,199.99

Description

The A8X comes equipped with the latest Shimano Ultegra Di2 hydro disc groupset, aerodynamic 50mm carbon TL wheels, a Vision Metron integrated cockpit and a lightweight UCI-approved carbon frame with a stunning paint job, all weighing in at 7.9kg.
FRAMESET

frame

ACX Performance UCI Approved, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc
headset

N/A
SUSPENSION

fork

ACX Performance UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc
shock

N/A
DRIVETRAIN

rear derailleur

Shimano Ultegra Di2 RD-R8150, 12-Speed
front derailleur

Shimano Ultegra Di2 FD-R8150, Braze-On
shifter

Shimano Ultegra Di2 ST-R8170, 12-Speed
crank

Shimano Ultegra FC-R8100, HollowTech 2, 12-Speed
chainring

52/36T
cassette

Shimano Ultegra CS-R8100, 12-Speed, 11-34T
chain

Shimano CN-M8100, 12-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano Ultegra BR-R8170, Hydraulic Disc, 160mm Center Lock
rear brake

Shimano Ultegra BR-R8170, Hydraulic Disc, 140mm Center Lock
rotor

N/A
WHEELS

front hub

Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes
rear hub

Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes
rim

Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Tubeless Tape Installed
tyre

Schwalbe One Addix TLE, 700x28C
max tyre size

N/A
inner tube

80mm Presta Valve
CONTACT POINTS

saddle

Entity Flux2
seatpost

Polygon Aero Carbon Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset
handlebar

Vision Metron 5D ACR Integrated, 400mm Width (XS-S), 420mm Width (M-L), 420mm (XL), 80mm Reach, 125mm Drop
grips

N/A
stem

Vision Metron 5D ACR Integrated, 100mm Length (XS-S), 110mm Length (M-L), 120mm Length (XL), 6-Degree
pedals

N/A
WEIGHT

bike weight

17.4lbs (Size L)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Relic 24

$499.99

Description

The Polygon Relic 24” features a lightweight AL6 aluminum frame, Zoom HL 60mm suspension fork, Shimano Tourney 1x8-speed, disc brakes, and VeeTire Co. XCV tires.
FRAMESET

frame

AL6 Alloy Youth, 24" Wheels, IS Seatstay Disc Mount, 135mm Dropouts
headset

N/A
SUSPENSION

fork

Zoom HL, 60mm Travel, Alloy Crown & Lower, Coil Spring, Straight 1-1/8" Steerer, QR x 100mm
shock

Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
DRIVETRAIN

rear derailleur

Shimano RD-TX800-SGS, Direct Attach
front derailleur

N/A
shifter

Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
crank

Prowheel A105PP 32T, 152mm
chainring

N/A
cassette

Shimano HG200, 8 Speed, 12-32T
chain

KMC Z-8.3
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
rear brake

Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
rotor

N/A
WHEELS

front hub

Alloy, 32H, QR, 6-Bolt
rear hub

Alloy, 32H, QR, 6-Bolt, 135mm Spacing
rim

Alloy, Double-Wall, Disc Specific, 32H
tyre

Vee XCV 24 x 2.10"
max tyre size

24 x 2.3" (26 x 2.3" if the wheelset is upgraded to 26")
inner tube

N/A
CONTACT POINTS

saddle

Polygon Kids
seatpost

27.2x300mm, 16mm Offset, Alloy
handlebar

640mm, Steel
grips

Slip-on Rubber, L:110mm R:72mm
stem

40mm, Steel
pedals

Kids Specific Nylon Pedal
WEIGHT

bike weight

21.16 lbs
battery weight

N/A
ACCESSORIES

kick stand

Alloy Centre Mount
fender mudguard

N/A
assembly tools

N/A

Shop Now

Premier 24 XC

$349.99

Description

The Polygon Premier 24” XC features a lightweight aluminum frame, Suntour Suspension, Shimano Tourney 1x7-Speed, V-brakes and Kenda Small Block 8 tires.
FRAMESET

frame

AL6 6061 Aluminium, Kids Specific Geometry, 135mm Rear Hub, Replaceable Derailleur Hanger
headset

N/A
SUSPENSION

fork

Suntour M3010, 50mm Suspension Travel, Soft-Tuned Coil Spring
shock

N/A
DRIVETRAIN

rear derailleur

Shimano Tourney RD-TZ31A, 7-Speed
front derailleur

N/A
shifter

Shimano Tourney SL-RS25, Revo Shifter with Optical Gear Display, 7-Speed
crank

Prowheel A102PP Alloy Arms, 3/32" Steel Chainring with Plastic Double Chain Guard, 32T
chainring

N/A
cassette

7-Speed Freewheel 14-28T
chain

KMC HV500, 7-Speed
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
rear brake

Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
rotor

N/A
WHEELS

front hub

Alloy nutted 3/8" 26 TPI, 100mm Spacing
rear hub

Alloy nutted 3/8" 26 TPI, 135mm Spacing
rim

Alloy Double Wall, CNC brake surface with wear indicator, 19mm Internal Width, 28H
tyre

Kenda K1153 All-Terrain, 24x1.75"
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

Entity Saddle
seatpost

Alloy, 27.2mm
handlebar

Alloy Riser, 30mm Rise
grips

Slip-on Rubber, L:110mm R:72mm
stem

Alloy 4-bolt, 25.4mm Bar Bore
pedals

Kids Specific Nylon Pedal
WEIGHT

bike weight

N/A
battery weight

N/A
ACCESSORIES

kick stand

Alloy Centre Mount
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu T8

$1,799.99

Description

The Polygon Siskiu T8 is the ultimate all-mountain shredder, boasting 135/140mm of travel, a playful trail geometry, and a capable Fox Float DPS/34 Rhythm suspension combo. Shimano's SLX 12-speed drivetrain and 4-piston brakes deliver reliable performance for conquering any trail.
FRAMESET

frame

ALX Trail 6061 Aluminium Frame, One Piece Unibody Pivot Bridge 140/135mm Travel (27.5"/29"), Dropper Post and Rear Derailleur Routing, Direct Post-Mount Disc Brake, 148x12mm Boost Thru-Axle, Threaded BB, ISCG 05 Tabs
headset

N/A
SUSPENSION

fork

Fox 34 Rhythm, Grip Damper, Rebound & Sweep Adjust, 150/140mm Travel (27.5"/29"), 110x15mm Kabolt Boost Axle
shock

Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm
DRIVETRAIN

rear derailleur

Shimano SLX RD-M7100, 12-Speed
front derailleur

N/A
shifter

Shimano SLX SL-M7100, 12-Speed
crank

Shimano FC-MT-510-1
chainring

32T
cassette

Sunrace CSMZ-800, 11-51T, 12-Speed
chain

KMC X-12
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
rear brake

Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
rotor

N/A
WHEELS

front hub

Novatec D791SB, 15X110mm
rear hub

Novatec D442SB, 12x148mm, HG Freehub, 32h, Center Lock*
rim

Entity XL2 Disc 35-584 (27.5”) / 35-622 (29”), 35mm Inner, Tubeless Ready
tyre

VeeTire Flow Snap, Tackle Compound | Schwalbe Hans Dampf ADDIX Speed Grip, 27.5x2.6" / 29x2.6", Tubeless Ready
max tyre size

N/A
inner tube

N/A
CONTACT POINTS

saddle

Entity
seatpost

KS RAGE-I, Size S-M 150mm Travel, Size L-XL 170mm Travel, Zero Offset, 30.9mm Polygon Seat Clamp
handlebar

Entity Xpert, Alloy, 780mm wide, 35mm Diameter
grips

Polygon Lock On
stem

Entity Xpert, Alloy, 35mm length, 35mm Clamping Diameter
pedals

Alloy Flat Pedal w/Replaceable Pin and Reflector
WEIGHT

bike weight

33.5 lbs (Size M 29)
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu D24

$899.99

Description

The Polygon Siskiu D24 is the perfect full-suspension mountain bike for young riders ready to conquer the trails. Upgraded for 2024 with hydraulic disc brakes, this bike also boasts a lightweight frame, adjustable air suspension, and reliable components - it's built for fun and progression.
FRAMESET

frame

ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle
headset

N/A
SUSPENSION

fork

Suntour Raidon 32, Air Spring, 120mm Travel, Rebound, Lockout, Q-LOC2 Axle 15x100mm
shock

Suntour Raidon R, Air Spring, Rebound, Custom Tune
DRIVETRAIN

rear derailleur

Microshift Acolyte RD-M5185M, Medium Cage, Clutch
front derailleur

N/A
shifter

Microshift Acolyte Trigger SL-M7180M, 1x8-speed
crank

Prowheel C10Y-NW, 30T, 140mm
chainring

N/A
cassette

Microshift Acolyte CS-H083, 8-speed, 12-42T
chain

KMC Z8
E-SYSTEM

battery

N/A
computer

N/A
motor

N/A
display

N/A
range

N/A
charging time

N/A
charger

N/A
switch

N/A
BRAKES

front brake

Tektro HD-J285, Hydraulic Disc, 160mm Rotor
rear brake

Tektro HD-J285, Hydraulic Disc, 160mm Rotor
rotor

N/A
WHEELS

front hub

Entity Sealed Bearing, 15mm Thru-Axle, 110mm spacing
rear hub

Entity Sealed Beaing, 12mm Thru-Axle, 142mm spacing
rim

Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed
tyre

Vee Tire Flow Snap 24X2.4", Natural Wall, Wire Bead, Tackee Compound (Non-Tubeless)
max tyre size

F: 26” | R: 24”
inner tube

N/A
CONTACT POINTS

saddle

Entity MTB Kids
seatpost

Entity Sport, Alloy, 30.9x250mm
handlebar

Entity Sport, Alloy, Width: 640mm, Rise: 20mm
grips

N/A
stem

Entity Sport, Alloy, Length: 40mm, BB: 31.8mm
pedals

N/A
WEIGHT

bike weight

N/A
battery weight

N/A
ACCESSORIES

kick stand

N/A
fender mudguard

N/A
assembly tools

N/A

Shop Now

Siskiu D6 SE

$1,099.99
- Description
  
  The Polygon Siskiu D6 is a versatile full-suspension xc/trail bike designed for riders seeking performance and value. Featuring 120mm of travel, Shimano Deore 1x10 drivetrain with a wide 11-42T cassette, dropper post, and hydraulic disc brakes, it's ready to hit some singletrack!
- FRAMESET
  
  frame
  
  ALX XC Trail Frame BSA Threaded 73mm Internal
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour XCM Boost 120mm Travel, Preload Adjuster, Lockout, Rebound Adjust 15X110mm Q-loc Thru Axle
  shock
  
  Suntour Raidon Lo, Air Spring, Lockout, 190x45mm
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Deore RD-M5120 Direct Attach 10-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano Deore SL-M4100, 10-Speed Trigger
  crank
  
  Shimano Deore FC-M5100-1 32T Two-Piece-Crank
  chainring
  
  N/A
  cassette
  
  Shimano Deore CS-M4100 10-42T 10-Speed
  chain
  
  KMC X10-1, 10-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano MT-201 Hydraulic Disc Brake, 180mm Rotor
  rear brake
  
  Shimano MT-201 Hydraulic Disc Brake, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Shimano HB-Mt400-B, 32H, Center Lock, 15x110mm
  rear hub
  
  Shimano FB-Mt400-B, 32H, Center Lock, 12x148mm
  rim
  
  X-15, 32H, Tubeless Ready
  tyre
  
  Entity Spiderbait 27.5x2.25" / 29x2.25
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  N/A
  seatpost
  
  Rage-I Dropper 150mm (S/M) / 170mm (L/XL)
  handlebar
  
  ENTITY SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 12mm, B: 6degree
  grips
  
  Included
  stem
  
  Enitity Sport Alloy 45mm 31.8mm 0 Degree
  pedals
  
  Included
- WEIGHT
  
  bike weight
  
  35lbs (Size L)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Helios A8X

$4,199.99
- Description
  
  The A8X comes equipped with the latest Shimano Ultegra Di2 hydro disc groupset, aerodynamic 50mm carbon TL wheels, a Vision Metron integrated cockpit and a lightweight UCI-approved carbon frame with a stunning paint job, all weighing in at 7.9kg.
- FRAMESET
  
  frame
  
  ACX Performance UCI Approved, Internal Cable Routing, BB86 Press Fit BB, 12x142mm Thru-Axle, Flat Mount Disc
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  ACX Performance UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc
  shock
  
  N/A
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Ultegra Di2 RD-R8150, 12-Speed
  front derailleur
  
  Shimano Ultegra Di2 FD-R8150, Braze-On
  shifter
  
  Shimano Ultegra Di2 ST-R8170, 12-Speed
  crank
  
  Shimano Ultegra FC-R8100, HollowTech 2, 12-Speed
  chainring
  
  52/36T
  cassette
  
  Shimano Ultegra CS-R8100, 12-Speed, 11-34T
  chain
  
  Shimano CN-M8100, 12-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano Ultegra BR-R8170, Hydraulic Disc, 160mm Center Lock
  rear brake
  
  Shimano Ultegra BR-R8170, Hydraulic Disc, 140mm Center Lock
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes
  rear hub
  
  Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes
  rim
  
  Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Tubeless Tape Installed
  tyre
  
  Schwalbe One Addix TLE, 700x28C
  max tyre size
  
  N/A
  inner tube
  
  80mm Presta Valve
- CONTACT POINTS
  
  saddle
  
  Entity Flux2
  seatpost
  
  Polygon Aero Carbon Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset
  handlebar
  
  Vision Metron 5D ACR Integrated, 400mm Width (XS-S), 420mm Width (M-L), 420mm (XL), 80mm Reach, 125mm Drop
  grips
  
  N/A
  stem
  
  Vision Metron 5D ACR Integrated, 100mm Length (XS-S), 110mm Length (M-L), 120mm Length (XL), 6-Degree
  pedals
  
  N/A
- WEIGHT
  
  bike weight
  
  17.4lbs (Size L)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Relic 24

$499.99
- Description
  
  The Polygon Relic 24” features a lightweight AL6 aluminum frame, Zoom HL 60mm suspension fork, Shimano Tourney 1x8-speed, disc brakes, and VeeTire Co. XCV tires.
- FRAMESET
  
  frame
  
  AL6 Alloy Youth, 24" Wheels, IS Seatstay Disc Mount, 135mm Dropouts
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Zoom HL, 60mm Travel, Alloy Crown & Lower, Coil Spring, Straight 1-1/8" Steerer, QR x 100mm
  shock
  
  Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
- DRIVETRAIN
  
  rear derailleur
  
  Shimano RD-TX800-SGS, Direct Attach
  front derailleur
  
  N/A
  shifter
  
  Shimano Tourney SL-RS45, Revo Shifter with Optical Gear Display, 8-Speed
  crank
  
  Prowheel A105PP 32T, 152mm
  chainring
  
  N/A
  cassette
  
  Shimano HG200, 8 Speed, 12-32T
  chain
  
  KMC Z-8.3
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
  rear brake
  
  Tektro TS-325A Mechanical Disc, Alloy Lever, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Alloy, 32H, QR, 6-Bolt
  rear hub
  
  Alloy, 32H, QR, 6-Bolt, 135mm Spacing
  rim
  
  Alloy, Double-Wall, Disc Specific, 32H
  tyre
  
  Vee XCV 24 x 2.10"
  max tyre size
  
  24 x 2.3" (26 x 2.3" if the wheelset is upgraded to 26")
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Polygon Kids
  seatpost
  
  27.2x300mm, 16mm Offset, Alloy
  handlebar
  
  640mm, Steel
  grips
  
  Slip-on Rubber, L:110mm R:72mm
  stem
  
  40mm, Steel
  pedals
  
  Kids Specific Nylon Pedal
- WEIGHT
  
  bike weight
  
  21.16 lbs
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  Alloy Centre Mount
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Premier 24 XC

$349.99
- Description
  
  The Polygon Premier 24” XC features a lightweight aluminum frame, Suntour Suspension, Shimano Tourney 1x7-Speed, V-brakes and Kenda Small Block 8 tires.
- FRAMESET
  
  frame
  
  AL6 6061 Aluminium, Kids Specific Geometry, 135mm Rear Hub, Replaceable Derailleur Hanger
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour M3010, 50mm Suspension Travel, Soft-Tuned Coil Spring
  shock
  
  N/A
- DRIVETRAIN
  
  rear derailleur
  
  Shimano Tourney RD-TZ31A, 7-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano Tourney SL-RS25, Revo Shifter with Optical Gear Display, 7-Speed
  crank
  
  Prowheel A102PP Alloy Arms, 3/32" Steel Chainring with Plastic Double Chain Guard, 32T
  chainring
  
  N/A
  cassette
  
  7-Speed Freewheel 14-28T
  chain
  
  KMC HV500, 7-Speed
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
  rear brake
  
  Promax BL-367G Alloy 4-Finger Kids with Reach Adjust
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Alloy nutted 3/8" 26 TPI, 100mm Spacing
  rear hub
  
  Alloy nutted 3/8" 26 TPI, 135mm Spacing
  rim
  
  Alloy Double Wall, CNC brake surface with wear indicator, 19mm Internal Width, 28H
  tyre
  
  Kenda K1153 All-Terrain, 24x1.75"
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity Saddle
  seatpost
  
  Alloy, 27.2mm
  handlebar
  
  Alloy Riser, 30mm Rise
  grips
  
  Slip-on Rubber, L:110mm R:72mm
  stem
  
  Alloy 4-bolt, 25.4mm Bar Bore
  pedals
  
  Kids Specific Nylon Pedal
- WEIGHT
  
  bike weight
  
  N/A
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  Alloy Centre Mount
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Siskiu T8

$1,799.99
- Description
  
  The Polygon Siskiu T8 is the ultimate all-mountain shredder, boasting 135/140mm of travel, a playful trail geometry, and a capable Fox Float DPS/34 Rhythm suspension combo. Shimano's SLX 12-speed drivetrain and 4-piston brakes deliver reliable performance for conquering any trail.
- FRAMESET
  
  frame
  
  ALX Trail 6061 Aluminium Frame, One Piece Unibody Pivot Bridge 140/135mm Travel (27.5"/29"), Dropper Post and Rear Derailleur Routing, Direct Post-Mount Disc Brake, 148x12mm Boost Thru-Axle, Threaded BB, ISCG 05 Tabs
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Fox 34 Rhythm, Grip Damper, Rebound & Sweep Adjust, 150/140mm Travel (27.5"/29"), 110x15mm Kabolt Boost Axle
  shock
  
  Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm
- DRIVETRAIN
  
  rear derailleur
  
  Shimano SLX RD-M7100, 12-Speed
  front derailleur
  
  N/A
  shifter
  
  Shimano SLX SL-M7100, 12-Speed
  crank
  
  Shimano FC-MT-510-1
  chainring
  
  32T
  cassette
  
  Sunrace CSMZ-800, 11-51T, 12-Speed
  chain
  
  KMC X-12
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
  rear brake
  
  Shimano BR-MT420 4-Piston Caliper, 180mm Rotor* / Tektro HD-M745, 4-Piston Caliper, 180mm Rotor*
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Novatec D791SB, 15X110mm
  rear hub
  
  Novatec D442SB, 12x148mm, HG Freehub, 32h, Center Lock*
  rim
  
  Entity XL2 Disc 35-584 (27.5”) / 35-622 (29”), 35mm Inner, Tubeless Ready
  tyre
  
  VeeTire Flow Snap, Tackle Compound | Schwalbe Hans Dampf ADDIX Speed Grip, 27.5x2.6" / 29x2.6", Tubeless Ready
  max tyre size
  
  N/A
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity
  seatpost
  
  KS RAGE-I, Size S-M 150mm Travel, Size L-XL 170mm Travel, Zero Offset, 30.9mm Polygon Seat Clamp
  handlebar
  
  Entity Xpert, Alloy, 780mm wide, 35mm Diameter
  grips
  
  Polygon Lock On
  stem
  
  Entity Xpert, Alloy, 35mm length, 35mm Clamping Diameter
  pedals
  
  Alloy Flat Pedal w/Replaceable Pin and Reflector
- WEIGHT
  
  bike weight
  
  33.5 lbs (Size M 29)
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now
Siskiu D24

$899.99
- Description
  
  The Polygon Siskiu D24 is the perfect full-suspension mountain bike for young riders ready to conquer the trails. Upgraded for 2024 with hydraulic disc brakes, this bike also boasts a lightweight frame, adjustable air suspension, and reliable components - it's built for fun and progression.
- FRAMESET
  
  frame
  
  ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle
  headset
  
  N/A
- SUSPENSION
  
  fork
  
  Suntour Raidon 32, Air Spring, 120mm Travel, Rebound, Lockout, Q-LOC2 Axle 15x100mm
  shock
  
  Suntour Raidon R, Air Spring, Rebound, Custom Tune
- DRIVETRAIN
  
  rear derailleur
  
  Microshift Acolyte RD-M5185M, Medium Cage, Clutch
  front derailleur
  
  N/A
  shifter
  
  Microshift Acolyte Trigger SL-M7180M, 1x8-speed
  crank
  
  Prowheel C10Y-NW, 30T, 140mm
  chainring
  
  N/A
  cassette
  
  Microshift Acolyte CS-H083, 8-speed, 12-42T
  chain
  
  KMC Z8
- E-SYSTEM
  
  battery
  
  N/A
  computer
  
  N/A
  motor
  
  N/A
  display
  
  N/A
  range
  
  N/A
  charging time
  
  N/A
  charger
  
  N/A
  switch
  
  N/A
- BRAKES
  
  front brake
  
  Tektro HD-J285, Hydraulic Disc, 160mm Rotor
  rear brake
  
  Tektro HD-J285, Hydraulic Disc, 160mm Rotor
  rotor
  
  N/A
- WHEELS
  
  front hub
  
  Entity Sealed Bearing, 15mm Thru-Axle, 110mm spacing
  rear hub
  
  Entity Sealed Beaing, 12mm Thru-Axle, 142mm spacing
  rim
  
  Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed
  tyre
  
  Vee Tire Flow Snap 24X2.4", Natural Wall, Wire Bead, Tackee Compound (Non-Tubeless)
  max tyre size
  
  F: 26” | R: 24”
  inner tube
  
  N/A
- CONTACT POINTS
  
  saddle
  
  Entity MTB Kids
  seatpost
  
  Entity Sport, Alloy, 30.9x250mm
  handlebar
  
  Entity Sport, Alloy, Width: 640mm, Rise: 20mm
  grips
  
  N/A
  stem
  
  Entity Sport, Alloy, Length: 40mm, BB: 31.8mm
  pedals
  
  N/A
- WEIGHT
  
  bike weight
  
  N/A
  battery weight
  
  N/A
- ACCESSORIES
  
  kick stand
  
  N/A
  fender mudguard
  
  N/A
  assembly tools
  
  N/A
Shop Now

Customer Reviews

4.9 Based on 40 Reviews

5 ★

93%

4 ★

3 ★

2 ★

1 ★

Customer Photos

2024 Polygon Helios A8X - Carbon Road Bike [Size: L (height 5

2024 Polygon Helios A8X - Customer Photo From TIM Richards

2024 Polygon Helios A8X - Carbon Road Bike [Size: M (height: 172 - 180cm)] - Customer Photo From Owen Bawden

2024 Polygon Helios A8X - Carbon Road Bike [Size: L (height: 178 - 186cm)] - Customer Photo From Andrew BEAZLEY

2024 Polygon Helios A8X - Carbon Road Bike [Size: M (height: 172 - 180cm)] - Customer Photo From Steven Vowell

2023 Polygon Helios A8X - Carbon Road Bike [Colour: Black][Size: XL (height: 180 - 187cm)] - Customer Photo From David Gatwood

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04/21/2025

David T.

Australia

Service

Brad was great and although the bike arrived with gearing not 100% right it was fixed.

Polygon Helios A8X - Ultegra Di2 Carbon Road Bike

03/14/2025

Richard C.

Australia

Helios A8X purchase

Very satisfied with my recent purchase. Great customer service with knowledgeable sales people. All queries wear handled in a timely manner and the bike has been a great buy.

Polygon Helios A8X - Ultegra Di2 Carbon Road Bike

Size	XXS	XS	S	M	L	XL
Height (ft/in)	5'2" - 5'5"	5'4" - 5'6"	5'5" - 5'8"	5'8" - 5'11"	5'10" - 6'1"	6'0" - 6'4"
Seat Tube Length (A)	450	475	500	520	545	570
Seat Tube Angle (B)	75°	74.7°	74.3°	74°	73.7°	73.3°
Effective Seat Tube Angle (C)	75°	74.7°	74.3°	74°	73.7°	73.3°
Head Tube Length (D)	100	115	130	145	160	175
Head Tube Angle (E)	71.5°	71.8°	72°	72.3°	72.3°	72.8°
Effective Top Tube (F)	505.31	517.31	530.42	543.04	555.14	569.25
BB Height (G)	271	271	271	271	271	271
BB Offset (H)	73	73	73	73	73	73
Chainstay Length (I)	415	415	415	415	415	415
Wheelbase (J)	968.42	975.82	983.9	991.1	1000.62	1005.8
Frame Reach (K)	370	375	380	385	390	395
Frame Stack (L)	505	520.21	535.2	550.4	564.7	580.8
Standover Height (M)	716.04	739.4	763.21	780.8	802.52	824.28

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Polygon Helios A8X - Ultegra Di2 Carbon Road Bike

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