- Home
- Bikes
- Mountain
- Dual Suspension Mountain Bikes
- Polygon Siskiu D24 EVO - Kids Mountain Bike




















Description

BEST 1ST FULL SUSPENSION
The perfect upgrade for adventurous kids (ages 7-11) ready to take on bigger challenges. Its full-suspension design with 120mm travel is built to handle rocks, roots and jumps. Plus, it's mullet-compatible, so you can upgrade to a 26" front wheel as your child grows, extending the life of the bike and their riding progression!

VALUE MEETS PERFOMANCE
Built around a durable alloy frame, the D24 EVO features custom-tuned air suspension for lighter riders, offering superior performance that can be easily adjusted as they grow. The Shimano Cues 1x10 drivetrain ensures smooth shifting on any terrain, while hydraulic disc brakes provide reliable stopping power. Plus, the included dropper post boosts confidence and control on descents.

A TRUSTED BRAND
Polygon is a factory-direct brand with over 30 years of experience crafting high-performance bikes at competitive prices. Vertically integrated manufacturing ensures quality and cost savings. Their mountain bikes have been tested on the world stage at events like Redbull Rampage and the World Cup circuit, boasting a 5-year frame warranty for peace of mind.

X-FUSION VELVET FORK
The X-Fusion Velvet fork and 02 PRO R rear shock are custom tuned for young shredders light weight, allowing them to get the most out of the 120mm of travel. The air springs can be easily adjusted with a shock pump to match your child's weight and riding style.

SHIMANO 1x10 DRIVETRAIN
The Shimano Cues 1x10 drivetrain delivers smooth, reliable shifting and the 11-48t cassette offers plenty of range to get up steep climbs. Thanks to the clutch rear derailleur, there is no clunking or rattling from the drivetrain and less dropped chains!

HYDRAULIC DISC BRAKES
Tektro hydraulic brakes provide tonnes of power and all weather performance. Levers specifically designed for small hands are easy to reach and will save any rider in a sticky situation.

DROPPER POST
The TranzX dropper post allows for quick and easy saddle height adjustment on the fly, improving your child's control and confidence on descents and technical sections.

WHEELS & TYRES
Entity X15 Disc wheels are lightweight and durable, and come pre-taped for easy tubeless setup. The stock Vee Tyres off loads of grip and puncture protection! For a full tubeless setup, you will need valves, sealant and tubeless ready tyres.
Components
FRAMESET
SUSPENSION
DRIVETRAIN
BRAKES
WHEELS
CONTACT POINTS
WEIGHT
Note: For a complete tubeless setup, tubeless valves, tyres and sealant will need to be purchased separately.
Geometry
One Size | |
Rider Height | 128-150cm |
Frame Stack (A) | 534.1 |
Frame Reach (B) | 350 |
Head Tube Length (C) | 90 |
Head Tube Angle (D) | 66 |
Seat Tube Angle (E) | 73.5 |
Effective Seat Tube Angle | 75 |
Seat Tube Length (F) | 317 |
Effective Top Tube (G) | 493.1 |
Bb Height (H) | 303.5 |
Bb Offset (I) | 10 (DROP) |
Chainstay Length (J) | 400 |
Wheelbase (K) | 1028.2 |
Standover Height (L) | 598.4 |
Minimum Saddle Height | 705 |
Maximum Saddle Height | 830 |
Maximum Seat Post Insertion Depth | 200mm |
Crank Length | 140 |
Front Travel | 120 |
* All lengths in mm
Technical Information | |
Front Travel | 120 |
Rear Travel | 120 |
Maximum Tyre Width | 2.4" |
Maximum Chainring Size | 32T |
Rear Shock Spec | E2E 190x51, M8x25 Hardware |
Headset Spec | ZS 44/28.6 | ZS 56/40 |
Spokes Front | L: 232, R: 232 |
Spokes Rear | L: 232, R: 230 |
Assembly
If you’re a bike-building pro: You’ll be done in just 10-15 minutes.
Got a knack for fixing things? Give it 15-25 minutes.
New to the DIY world? Take your time, around 30-40 minutes, and you’ll get there!
Need some visual aids? We’ve got you covered! Just click on our step-by-step video guide below for a smooth setup. Happy cycling!
How To Unbox Your Dual Suspension MTB
How To Setup Your Suspension
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check
How To Unbox Your Dual Suspension MTB
How To Setup Your Suspension
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check

Polygon Siskiu D24 EVO - Kids Mountain Bike
Short Description
Shipping

















- Reviews
- Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Its incredible!

Was in perfect condition

I got tis mountain bike for Christmas and I love it so much and it rides So well for 1500$
Grate

Great packing and prep for assembly
I bought this bike for my son for Christmas. I haven’t given it to him yet, so I can’t speak to the on trail experience (and this will be a major upgrade for him so I expect nothing but good things), but I was very impressed with the way the bike was packed and prepped for easy assembly. I’m fairly adept around a bike and was able to get it together pretty quickly. It also shifted cleanly, there was no brake rub, and all the bolts were properly tightened. I’ve already recommended it to a number of friends.