Ridgeback Dimension 24 - 2026
Going further is the name of the game with the lightweight Dimension 24! Designed for average height riders aged 8 and upwards, the lightweight Dimension 24 is the perfect kids bike for young adventurers who want to see and do more by bike.
Packed with all the easy-to-ride and fit-adjustable features you could need, the Dimension 24 punches well above its low weight. The light aluminium build keeps things easy to manage, while wide-range 8-speed Shimano gears make light work of hills along the way.
Easy-Pedal Cranks — Our pedal cranks are ergonomically correct, proportional to the child's leg length. They also place the pedals closer to the bike's centre so that children can pedal as smoothly and naturally as possible.
Smaller Grips — Our handlebars and grips are narrower diameter so they fit small hands better, for confidence and control as well as better ability to reach the brakes safely.
Faster Tyres — Special edition Nutrak Speedsters with puncture resistance and reflective sidewalls roll comfortably and smoothly.
Lowered Frames — Our frames are lower where it counts, making it easier to get on and off and increasing clearance for greater confidence.
Steering Limiter — To help prevent falls when learning to co-ordinate pedalling and cornering, the steering has a limit stop that helps avoid an over-steering situation.
Specification
Age Range: 8 to 11.5 years
Height Range: 128cm to 146cm
Inside Leg Range: 60cm to 70cm
Frame: Butted 6061-T6 heat-treated aluminium
Fork: 6061-T6 heat-treated aluminium
Handlebars: 19.0mm OD grip area, 560mm W, 40mm rise, 10° sweep
Grips: 19.0mm ID Velo grips, locking collar, Kraton rubber
Stem: 40mm extension, 10° rise, 25.4mm clamp
Saddle: Madison, soft PU foam padding, 258L x 137W
Seat Post: 27.2 x 300mm, all aluminium
Headset: Upper: ZS44/28.6 | Lower: ZS44/30
Tyres: Nutrak by Vee - Speedster 24" x 2.0", reflective strip and flat-resistant belt, natural colour sidewall
Rims: Aluminium, machined sidewall with wear indicators, 32H F+R, Car-type valve
Front Hub: Aluminium, M6 bolted axle
Rear Hub: Shimano FH-N300 freehub, nutted axle
Shifters: Shimano SL-M315 trigger shifter, Jagwire LEX-SL lubricated cable housing
Rear Mech: Shimano RD-M3020-8 SGS w/ protective bash guard
Cassette: Shimano CS-HG31 cassette, 8 speed, 11-32T
Chain: KMC, silver/grey finish
Cranks: Forged aluminium, low Q-factor design, 127mm length
Chainring: 30T, aluminium, double chain retention discs
Bottom Bracket: Thun Germany, sealed bearings, CrMo 119mm axle
Pedals: Nylon resin compact pedals, ball-bearings
Brake Levers: Promax BL367-AL, reach adjustable, aluminium body
Brakes: Aluminium V-brake, adjustable linear spring, Jagwire LEX-SL lubricated cable housing
