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Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
Polygon Siskiu TE-N - Bosch E-Mountain Bike
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Description

EMPOWER YOUR RIDE

The Polygon Siskiu TE-N is your all-mountain companion, ready to elevate your e-MTB experience on any trail. From singletrack adventures to technical climbs and flowy descents, this bike's balanced design, with 140/150mm travel, delivers both agility and confidence. Experience the freedom to explore further, ride longer, and conquer challenging terrain with ease.

BOSCH!

Think of the TE-N as the T8E, upgrading to the super desirable BOSCH Performance Line CX motor, delivering 85 Nm of smooth, quiet assistance for conquering any climb. The integrated 625Wh Bosch PowerTube battery offers ample range for all-day adventures, making the Siskiu TE-N one of the most affordable, trail-ready eMTBs equipped with the premium Bosch system.

FLIP-CHIP

The Siskiu TE-N features a flip-chip for personalized geometry adjustments. In the high position, run a mullet setup (27.5" rear wheel and 29" front) for a playful and agile ride on tight trails. Switch to the low position for optimized 29er (front and rear) performance on high-speed, chunky sections.

A TRUSTED BRAND

Polygon boasts over 30 years of experience and is known for offering high-performance bikes at competitive prices. The Polygon Factory Racing Team features top-100 enduro athletes who have rigorously tested and developed the Polygon range of eMTBs, with the Siskiu TE featuring as their favourite training tool. Rest assured, the Siskiu TE is finely tuned for performance, durability, and pure riding enjoyment.

ROCKSHOX SUSPENSION

Experience a plush and controlled ride with the burly RockShox Lyrik Select fork and piggyback-equipped Super Deluxe Select+ rear shock providing fade-free performance on long descents.

ULTIMATE STOPPING POWER

Confidently tackle steep descents with the powerful Magura MT7 hydraulic disc brakes with 200mm rotors. Often regarded as the most powerful brakes on the market, the MT7 is the perfect choice for handling the extra weight of any e-MTB.

WIDE RANGE AND RELIABLE

Experience smooth and precise shifting with the SRAM Eagle 1x12 drivetrain, upgraded with a GX Eagle derailleur for enhanced performance. The wide-range 11-50T cassette ensures you have the right gear for any terrain, from steep climbs to fast descents.

SRAM UDH

The Siskiu TE-N is equipped with a SRAM Universal Derailleur Hanger (UDH), a standardized and readily available component. This means less downtime in the event of a crash and a hassle-free experience getting back on the trails.

Components

FRAMESET
FRAME
ALX Trail Frame, One Piece Linkage Suspension Platform 140mm Travel, Dropper Post And Rear Derailleur Routing, Direct Post-Mount Disc Brake, 148x12mm Boost Thru-Axle, Sram UDH
SUSPENSION
FORK
RockShox Lyrik Select, 150mm, Debonair+, Charger RC Damper
SHOCK
RockShox Super Deluxe Select+ , 210x55
DRIVETRAIN
REAR DERAILLEUR
Sram GX Eagle 12-Speed
SHIFTER
Sram SX Eagle, 1x12-Speed Trigger
CRANK
Sram X-Sync, 34T
CASSETTE
Sram CS-PG-1210-A1 Eagle, 12-Speed, 11-50T
CHAIN
Sram GX Eagle 12-Speed
E SYSTEM
BATTERY
Bosch Power Tube, 625Wh, Horizontal
MOTOR
Bosch Performance Line CX, 85Nm
RANGE
80-150km (Figures may vary depending on rider weight, terrain and mode used)
CHARGING TIME
2.1hr (50%), 4.9hr (100%)
CHARGER
Bosch Battery Charger 4A 110V
SWITCH
Bosch Mini Remote BRC3300
BRAKES
FRONT BRAKE
Magura MT7 Hydraulic Disc Brake, HC3 Lever
REAR BRAKE
Magura MT7 Hydraulic Disc Brake, HC3 Lever
ROTOR
203mm Magura MDR Rotor
WHEELS
FRONT HUB
DT Swiss 370, 15mm Thru-Axle, 110mm spacing, 6-Bolt
REAR HUB
DT Swiss 370, 12mm Thru-Axle, 148mm spacing
RIM
Entity XL3, Alloy Double Wall, 35mm Inner, 32H, Tubeless ready*
TYRE
Schwalbe Hans Dampf EVO, 29x2.6”, Super Trail TLE Addix Speed Grip, Tubeless Ready*
CONTACT POINTS
SADDLE
Entity Xtend
SEATPOST
TranzX JD-YSP23JL, 1x Remote, 30.9mm, 150mm (S-M), 170mm (L-XL)
HANDLEBAR
Entity Expert, 35mm Clamp, 780mm Width, 25mm Rise, 9° Bend
STEM
Entity Expert, 35mm Length
WEIGHT
BIKE WEIGHT
54lbs (Size L)

Specs are subject to change based on availability.

Geometry

Flip Chip Setup
Low
High
  S M L XL
Rider’s height in ft/in 5'2"–5'6" 5'6"–5'10" 5'10"–6'1"  6'1"–6'5"
(A) Seat tube length 390 400 430 450
(B) Seat tube angle 71.7 71.7 71.7 71.7
(C) Effective seat tube angle 77 77 77 77
(D) Head tube length 95 95 105 120
(E) Head tube angle 65 65 65 65
(F) Effective top tube 588 608 630 653
(G) BB Height 337 337 337 337
(H) BB offset 39 (drop) 39 (drop) 39 (drop) 39 (drop)
(I) Chainstay length 445 445 445 445
(J) Wheelbase 1205 1225 1249 1275
(K) Frame reach 445 465 485 505
(L) Frame stack 618 618 627 641
(M) Standover height 677 683 706 720
  S M L XL
(A) Seat tube length 390 400 430 450
(B) Seat tube angle 72.6 72.6 72.6 72.5
(C) Effective seat tube angle 77.9 77.9 77.9 77.8
(D) Head tube length 95 95 105 120
(E) Head tube angle 65.9 65.9 65.9 65.8
(F) Effective top tube 586 606 628 651
(G) BB Height 349 349 349 349
(H) BB offset 27 (drop) 27 (drop) 27 (drop) 27 (drop)
(I) Chainstay length 442 442 442 442
(J) Wheelbase 1203 1223 1247 1274
(K) Frame reach 454 474 494 514
(L) Frame stack 611 611 620 634
(M) Standover height 689 695 718 732

Assembly

Your bike needs minor assembly before riding; use the tools and videos included.

As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.

Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.

Step 1

How To Unbox Your Bosch E-MTB

Step 2

Dial In Your Suspension Setup

Step 3

Dial In Your Bike Fit

Step 4

Dial In Your Tyre Pressures

Step 5

Pre-Ride Check

Compare this bike

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Polygon Siskiu TE-N - Bosch E-Mountain Bike
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  • Description
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Customer Reviews
4.9 Based on 7 Reviews
5 ★
86% 
6
4 ★
14% 
1
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
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Customer Photos
Polygon Siskiu TE-N - Bosch E-Mountain Bike - Customer Photo From Jovan Cincoi
Polygon Siskiu TE-N - Bosch E-Mountain Bike - Customer Photo From Rob Serafini
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Filter Reviews:
J
05/04/2025
Jovan
United States

Loving my Polygon TE N

Saturday is fun day for me as I ride the polygon every Saturday in the trails of Green mountain trailheads on Clermont/Minneola, Florida. Bike looks good and very capable for what I do as a 57 y. o e mountain/ trail rider.

Polygon Siskiu TE-N - Bosch E-Mountain Bike
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S
04/30/2025
scotyb
United States

on going ride stuff

So, several rides are in the books. Only problem so far is the rear derailur low gear stop needs adjusting. I think the cable is also stretching, not uncommon on a new bike. The plastic ring that prevents the chain from becoming welded to the spokes died a trail side death. Other than that the bike rides great. Having been a long time 27.5 rider and only last year got my first full 29 mtn bike I can appreciate the mullet combo. I was worried about climbs but so far it handles it well. Have not tried super steep techy climbs yet. The Bosch system takes getting used to. Still have not found a manual for it, online or else where. It seems to auto shift itself to the upper boost mode as indicated by the colored light. It still works well and makes my climbing happen. All in all an incredible bike.

Polygon Siskiu TE-N - Bosch E-Mountain Bike
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