Ridgeback MX27.5 - 2026
Big Bike Energy, Unbeatable Value
The MX27.5 is designed to be the ultimate mix of ability and value for young adult riders — and it delivers on every front! Suitable for riders aged 11 and upwards up to 162cm tall, the MX27.5 bridges the gap between kids bike and full adult bike with style, confidence and a whole lot of fun.
Packed with all the easy-ride features you know and love from our smaller bikes, the MX27.5 takes things up a notch with full-size 27.5″ wheels — because this really is a small adult's bike more than a children's bike. A fully adjustable fit means it grows with your rider, making it a brilliant long-term investment for miles of adventures ahead.
Features
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 by Vee Speedsters with reflective sidewalls and puncture resistance
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.
Specifications
| Specification Category | Details |
| Age Range | 11 upwards |
| Height Range | 144cm to 162cm |
| Inside Leg Range | 69cm to 77cm |
| Frame | Butted 6061-T6 heat-treated aluminium |
| Fork | High Carbon Steel |
| Handlebars | 19.0mm OD grip area, 640mm W, 40mm rise, 10 degrees sweep |
| Grips | 19.0mm ID Velo grips, Kraton rubber |
| Stem | 40mm extension, 10 deg rise, 25.4mm clamp |
| Saddle | Madison, soft PU foam padding, 258L x 137W |
| Seat Post | 27.2 x 350mm aluminium tube / steel head |
| Headset | Upper: ZS44/28.6 |
| Tyres | Vee XCV, 27.5" x 2.1" |
| Rims | Aluminium, machined sidewall with wear indicators, 28H F+R, Car-type valve |
| Front Hub | Steel, M6 bolted axle |
| Rear Hub | Steel, 15mm safety dome-nutted axle |
| Shifters | Microshift TS38 trigger shifter |
| Rear Derailleur | Shimano RD-TY200 short cage w/ protective bash guard |
| Cassette | Shimano MF-TZ500, 7 speed, 14-28T |
| Chain | KMC |
| Cranks | Forged aluminium, low Q-factor design, 140mm length |
| Chainring | 30T, steel, double chain retention discs |
| Bottom Bracket | Sealed, CrMo 119mm axle |
| Pedals | Nylon resin compact pedals, ball-bearings |
| Brake Levers | Promax BL367, reach adjustable, resin body |
| Brakes | Aluminium V-brake, adjustable linear spring |












































