Monday | 9.00am - 5.30pm |
Tuesday | 9.00am - 5.30pm |
Wednesday | 9.00am - 5.30pm |
Thursday | 9.00am - 5.30pm |
Friday | 9.00am - 5.30pm |
Saturday | 9.00am - 5.30pm |
Sunday | 10.00am - 4.00pm |
Bank Holidays | 10.00am - 4.00pm |

2024 Specialized Riprock 20 Inch Kids Mountain Bike in Dune White

Freedom is the absence of fear. And riding fearlessly requires a bike that can handle your kid’s imagination.
It’s why Specialized designed Riprock to be a mountain bike inclusive of all the features needed for superior ripping, like modern geometry, Ground Control tires, hydraulic disc brakes, and internally routed cables. Finally, they threw in a wider-range drivetrain, making Riprock truly the perfect bike to inspire riders to climb higher and tackle the downhills freely.
Kids can’t ride confidently if they’re not riding comfortably. With Riprock, fit comes first. This meant using data to reimagine everything from how they grip to how they sit to create a bike specifically and proportionally for kids. They did all this because comfort creates confidence. And more confidence always leads to more riding fearlessly.
Features:
- Kids’ specific updates and features create a ride that inspires confidence. A 130mm Bridge saddle, as well as a narrower Q factor and shorter cranks, offer improved alignment between the hip, knee, and ankle to decrease the risk of injury and increase pedal power. Narrow grips and updated frame geometry offer improved bike handling, inspiring riders to ride more.
- A lightweight package, complete with an updated frame and wide-range drivetrain, creates the perfect bike to allow riders to easily tackle climbs.
- Trail riding starts here. Inspired by Specialized’s heritage in making mountain bikes, the Riprock offers modern MTB features such as a slack head tube angle, internally routed cables, hydraulic disc brakes, and Ground Control tires.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
Find Out More About Returns >

- Chainrings30T, chainguard
- CranksetForged Alloy, 115mm length, narrow Q-factor, w/ chainguard
- ChainKMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
- Rear DerailleurMicroSHIFT Advent 9 Speed, W/O Clutch
- Bottom BracketSquare-tapered, 68mm
- Shift LeversmicroSHIFT Advent SL-M6190, 9-speed , short reach triggers for easy operation
- CassettemicroSHIFT Advent, 9-speed, 11-42t
- ForkA1 Premium Butted Alloy, Alloy steerer, 15x110 mm, W/Mini Fender
- FrameA1 Premium Butted Alloy, unisex frame, internal cable routing, 148mm thru-axle, 30.9mm dropper post ready, replaceable derailleur hanger compatible
- Seat BinderBolt-type, 34.9mm
- RimsAlloy, 16mm depth, 25mm internal width, 28H
- Rear HubAlloy, 6-Bolt, 28H, 12x148 Boost, 11-speed compatiable
- Front HubAlloy, 6-Bolt, 28H, 15x110 Boost
- Rear TireGround Control Sport, 20x2.35"
- Front TireGround Control Sport, 20x2.35"
- Inner TubesSchrader valve
- SpokesStainless, 14g
- Front BrakeC-STAR Hydraulic Disc Brake, 160mm rotor, adjustable reach
- Rear BrakeC-STAR Hydraulic Disc Brake, 160mm rotor, adjustable reach
- SaddleKids Bridge Saddle, 130mm
- HandlebarsMini Rise, Alloy Double Butted, 6-degree Backsweep, 600mm Width, 31.8mm , 19mm Bar End Diameter
- GripsSpecialized Trail Grips, 19mm bar end diameter, lock-on
- SeatPostSpecialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm
- StemStout 3D-forged alloy, 31.8mm, 6-degree rise
- PedalsNylon platform w/ reflectors
- Weight9.9kg (21 lb, 13.2 oz)
- Weight SizeOne Size