Every trail tells a different story. Polygon builds mountain bikes for every ride, from cross-country speed to technical descents, with hardtail and full-suspension MTBs designed to perform.
Engineered with advanced frame technology, Polygon road bikes are designed to perform. Explore performance to all-rounder road bikes that deliver speed, efficiency, and precision on every ride.
SISKIU D24
Junior | 120mm/120mm | ALX Alloy | 24" Wheels
Features
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Built-In Growth & "Mullet" Compatibility
The SISKIU D24 is a long-term investment in their riding. The durable alloy frame and adjustable suspension allow for easy tuning as they get heavier and faster. Plus, it’s mullet-compatible, meaning you can swap in a 26" front wheel as your child grows to give them even more rollover capability and stability.
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Full Suspension Design
With 120mm of plush travel, this bike turns intimidating obstacles into backyard play. Whether it's a technical root section or their first drop, the suspension is tuned to keep the bike planted and the rider in control, soaking up the hits that rigid bikes can’t.
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Smart Shifting & Chain Security
The microSHIFT 1x drivetrain features an intuitive wide-range gear set for easy climbing and SpringLock chain retention. This means the chain stays exactly where it should.
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Youth-Specific Hydraulic Power
Confidence starts with the brakes. We’ve spec'd Tektro hydraulic disc brakes with short-reach levers designed specifically for smaller hands. They offer massive, reliable stopping power in all weather conditions.
Choose your series
Build Specs
| Kit |
SISKIU D24 EVO
|
SISKIU D24
|
SISKIU D24 2024
|
|---|---|---|---|
| Frame | ALX JUNIOR 120MM TRAVEL | ALX JUNIOR | ALX JUNIOR 120MM TRAVEL |
| Fork | XFUSION VELVET AIR 120MM TRAVEL | RST AERIAL AIR 120MM TRAVEL | SUNTOUR RAIDON 32 AIR 120MM TRAVEL |
| Shifter | SHIMANO CUES SL-U6000, 10-SPEED, RAPID FIRE SHIFTER | MICROSHIFT SL-M6280, 1x8 SPEED TRIGGER | MICROSHIFT SL-M7180-R 8-SPEED TRIGGER |
| Crank Set | PROWHEEL CHARM 32T 140mm | PROWHEEL C10Y, 30T | PROWHEEL C10Y 30T |
| Cassette | SHIMANO CS-LG300 11-48T | MICROSHIFT CS-H083, 12-42T | MICROSHIFT CS-H083 8-SPEED 12-42T |
| Rear Derailleur | SHIMANO CUES RD-U6000 | MICROSHIFT RD-M5185M | MICROSHIFT RD-M5185M 8-SPEED |
| Wheel Set | ALLOY WHEELS | POLYGON MT6 | ALLOY WHEELS |
| Tire | VEE TIRE FLOW SNAP 24"x2.4 507-62 | DELI VERSATILE SA-299 24x2.4" 622x61 TUBELESS READY | VEE TIRE FLOW SNAP 24"x2.4 507-62 |
| Brake Lever | TEKTRO HD-J285 | TEKTRO HD-J3120 | TEKTRO HD-J285 |
| Brake Caliper | TEKTRO J285 HYDRAULIC DISC BRAKE | TEKTRO HYDRAULIC DISC BRAKE | TEKTRO HYDRAULIC DISC BRAKE |
| Rotor | TEKTRO TR160-52 160mm | TEKTRO TR160, 160mm | TEKTRO TR160 6B |