The promotion is valid until the stock is sold out.
Regular price: 1.699,00 €
Previous price: 1.699,00 €
In stock
Junior | 120 mm/120 mm | ALX aluminium | 24-inch wheels
Polygon Siskiu D24 EVO is the perfect full-suspension mountain bike for young riders ready to take on the trails. With a lightweight frame, adjustable air suspension, dropper seatpost and reliable components, it’s designed for fun and progression.
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The X-Fusion Velvet fork and 02 PRO R rear shock are specially tuned for young riders with a lower body weight, allowing them to make the most of the 120 mm of travel. The air springs can be easily adjusted to suit your child’s weight and riding style using a suspension pump.

The Shimano Cues 1×10 drivetrain delivers smooth, reliable shifting, while the 11–48-tooth cassette provides plenty of gears for tackling steep climbs. The rear derailleur’s chain-tension mechanism (clutch) prevents chain slap and rattling, and helps keep the chain on the sprockets!

Tektro hydraulic brakes deliver excellent stopping power and effective performance in all weather conditions. The brake levers are specially designed for smaller hands and are easy to reach, helping the rider in any challenging situation.

The Tranz dropper seatpost makes it quick and easy to adjust saddle height while riding, improving your child’s control and confidence on descents and technical sections.

Entity X15 Disc rims are lightweight and durable, and come pre-fitted with rim tape, making it easy to set them up tubeless. The standard Vee tyres deliver excellent grip and puncture protection! To complete a tubeless conversion, you will need valves, sealant and tubeless-ready tyres.
| Weight | 13,6 kg |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 120 / 120mm |
| Fork | X-Fusion Velvet Air, 120 mm travel |
| Shock | X-Fusion 02 PRO R AIR, E2E: 190x45mm |
| Shifter | Shimano Cues SL-U6000, 10-speed, Rapid Fire |
| Crankset | Prowheel Charm 32T 140 mm |
| Cassette | Shimano CS-LG300 11–48T |
| Rear derailleur | Shimano Cues RD-U6000 |
| Bottom bracket | Prowheel, two-piece, 73 mm |
| Chain | Shimano LG500 |
| Pedals | One-piece polypropylene (PP) body |
| Saddle | Black, steel ø7 mm |
| Seatpost | Tranz X Dropper 80mm, DxL: 30.9 x 318mm |
| Handlebar | Polygon Expert, W: 640mm, BB: 31.8, R/D: 20mm, B: 6degree |
| Stem | Polygon Expert, E: 45mm, BB: 31.8mm, R/D: 3degree |
| Headset | Zero Stack with sealed bearings, ZS 44/28.6 | ZS 56/40 |
| Rims | 24″ Aluminium |
| Inner tube | VEE Tire Flow Snap 24"x2,4 507-62 |
| Rim | Aluminium, Double Wall, H: 22 mm, W: 24 mm, 507-24, 32 holes, for 507-62 tyre |
| Front hub | Solon DH909TF Thru Axle 15x100mm 32H 6B, |
| Rear hub | Solon DH909TR 12x142mm 32H 6B, for cassette |
| Spokes | 14G, stainless steel; NDS (left side): 230 mm, DS (right side): 232 mm; with 12 mm brass nipples |
| Brake lever | TEKTRO HD-J285 |
| Brake caliper | TEKTRO J285 hydraulic disc brake |
| Rotor | TEKTRO TR160-52 160mm |

| Rider height (cm) (cm) | 127-142 |
|---|---|
| Seat tube length (A) | 317 |
| Seat tube angle (B) | 73.5 |
| Actual seat tube angle (C) | 75 |
| Head tube length (D) | 90 |
| Head tube angle (E) | 66 |
| Bottom bracket height | 338 |
| Bottom bracket drop (H) | 10 |
| Chainstay length (I) | 425 |
| Wheelbase (J) | 1053 |
| Frame reach (K) | 350 |
| Frame stack (L) | 534 |
| Standover height (M) | 633 |
For sizing information, please call +386 (0)2 82 31 689.