Specialized Riprock 20 Int 2026 - Junior Bike

The Specialized Riprock 20 Int combines a lightweight alloy frame, youth-specific geometry, hydraulic disc brakes and an 8-speed microSHIFT drivetrain. With Ground Control tyres and kid-focused components, it’s designed to build confidence and control.
Key Features
- A1 Premium alloy frame with internal cable routing
- Rigid alloy fork with 15x110mm thru-axle
- microSHIFT Acolyte 8-speed drivetrain
- Promax DSK-926 hydraulic disc brakes
- 20” alloy wheels with 2.1” Kicker tyres
- Kids-specific contact points for comfort and control
- Dropper post ready for future upgrades
- Available with 0% APR finance
The Specialized Riprock 20 Int is built to give young riders the confidence and comfort they need to progress on the bike. Its A1 Premium alloy frame is lightweight yet tough, with clean internal cable routing and thru-axle hubs for stability and strength. The geometry has been rethought specifically for kids, making it easier to handle and better aligned to growing bodies.
Comfort is key to building confidence. Specialized has fitted narrower bars, slim grips, a kids’-specific 130mm Bridge saddle and shorter cranks, helping create a natural riding position that reduces strain on hips, knees and ankles. These details make the bike easier to ride and more enjoyable for longer adventures.
Braking power is provided by Promax DSK-926 hydraulic disc brakes with adjustable reach levers, designed so smaller hands can use them safely and confidently. The 160mm rear rotor offers plenty of stopping control for steep paths and trails. Paired with the wide 2.1” Kicker tyres, the Riprock delivers reliable traction and control across mixed terrain.
The drivetrain is handled by a microSHIFT Acolyte 8-speed system with a wide-range 12–42T cassette, making it easier for kids to climb hills and ride at a comfortable cadence. The short-reach shifter is easy for smaller hands to operate, keeping gear changes simple and intuitive.
Practical features include dropper post compatibility for future upgrades, stainless steel spokes for durability, and Ground Control-inspired tyres for grip and rolling efficiency. At its core, the Riprock 20 Int is a kids’ bike that takes design lessons from Specialized’s mountain bike heritage, scaled down to suit young riders perfectly.
The result is a bike that encourages children to explore trails, learn new skills and most importantly – enjoy riding. With modern MTB features and kid-specific fit, the Specialized Riprock 20 Int is an ideal choice for parents who want a capable, confidence-building first mountain bike for their child.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | A1 Premium Butted Alloy, unisex frame, internal cable routing, 148mm thru-axle, 30.9mm dropper post ready, replaceable derailleur hanger compatible |
| Fork | A1 Premium Butted Alloy, Alloy steerer, 15x110 mm, W/Mini Fender |
| Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
| Bars | Double Butted Alloy, 40mm rise , 11deg back sweep, 2.5deg up seep, 31.8mm, 620mm |
| Front Brake | Promax DSK-926, Hydraulic Disc Brake, Adjustable Reach |
| Rear Brake | Promax DSK-926, Hydraulic Disc Brake, 160mm Rotor, Adjustable Reach |
| Rear Mech | microSHIFT Super Short derailleur RD-M5185S, 8-Speed, w/ Clutch |
| Shifters | microSHIFT Acolyte Quick Trigger SL-M6285-R, 8-Speed, short reach triggers for easy operation |
| Speed | 11 |
| Rims | Alloy, 16mm depth, 25mm internal width, 28H |
| Front Hub | Alloy, 6-Bolt, 28H, 15x110 Boost |
| Rear Hub | Alloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable |
| Spokes | Stainless, 14g |
| Front Tyre | Kicker Wirebead 20X2.1 |
| Rear Tyre | Kicker Wirebead 20X2.1 |
| Seat Post | Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm |
| Saddle | Bridge Kids Saddle, 130mm |
| Bottom Bracket | Square-tapered, 68mm |
| Chain | KMC X8 w/ Missing Link™ |
| Cassette | microSHIFT Acolyte CS-H084, 12-42t, 8-speed |
| Pedals | Nylon platform w/ reflectors |
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Specialized Riprock Sizing
|
Size |
Height (cm) |
Height (inches) |
|
Riprock 12 |
79 – 94 |
31" - 37" |
|
Riprock 16 |
94 - 107 |
37" - 42" |
|
Riprock 20 |
107 – 119 |
41" - 52" |
|
Riprock 24 |
119 - 142 |
47” – 56” |
What size frame do I need if I am between sizes? - read here
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