2020 B’TWIN

Rockrider ST 900 Kids Alloy Mountain Bike - 20"

A 20″ aluminum frame general youth bike with rim brakes.

MSRP£229 (about $290)
Weight25.8 lbs  
FrameAluminum
SuspensionHardtail
Wheels20″
BrakesRim
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Reviews
Two Wheeling Tots
Btwin Rockrider 20 Review

Aug 2021 · Natalie Martins

Responsive dual handbrakes and NO coaster brake are just the start of what makes the Btwin Rockrider 20 such a bang for your buck. Read the review!

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off.road.cc
B’Twin Rockrider 700 24" kids mountain bike review

May 2019

For the money, B’Twin’s Rockrider 700 is a good 24" kids all rounder offering some decent kit, plenty of gears and geometry designed specifically for children. Quite how they’ve managed to make it so heavy though is intriguing. Seven of the best kids bikes of 2019 How to buy the best mountain bike for your child - whatever their age Canyon Offspring AL16 review When it comes to children’s bikes getting the fit right is key and this is why we’ve seen brands like Islabikes and Frog to name a couple, flourish.

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MBR
B'Twin Rockrider AM 100S review - MBR

Oct 2018 · Alan Muldoon

The B'Twin Rockrider AM 100S is available with three different wheel sizes. From smallest to largest, the same bike takes 27.5in, 27.5 Plus and 29in wheels.

Highs
  • Takes three different wheel sizes.

Lows
  • Front end is too short and too steep.

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BikeRadar
B’Twin Rockrider 900 review

Feb 2017 · Guy Kesteven

Definitely not a fun-time trail bike, but a blisteringly quick XC race machine at a bargain price. Buy if you're looking for an occasional bike for XC trails at a bargain price

Highs
  • Unapologetically traditional hard driving, head down/arse up racer

  • Top-value, 1x11 geared, race focused spec with bonus BOGOF tyre option

Lows
  • Race focus comes at the expense of trail confidence

  • Fork and cockpit lack challenging-terrain control

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99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Fork

Take on new challenging terrain (roots, stones, gravel, etc.) with ease thanks to the travel of the front suspension fork.

Groupset
Crank

The new aluminium chainset has a 140 mm crank that is designed for a child's leg length. This lightweight chainset allows you to start pedalling more easily. The double chain guard prevents the chain from derailing.

Brakes

Rim

TypeRim

Wheels
Tires

The tyres are designed for mountain biking. The lateral lugs provide good grip on turns. The tyres use SkinWall technology. This process makes it possible to reduce their weight, provide greater flexibility, therefore increasing their performance, grip and comfort. The recommended tyre pressure is displayed on the tyre sidewall (between 2 and 3.5 bar). 20-inch 1.7"-2.2" wide inner tube with Schrader valve.

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Last updated July 14
Not listed for 1,327 days