Ridgeback Dimension 27.5 Kids Bike in Greenwich Green
The Ridgeback Dimension 27.5 is built for riders aged 11 and upwards, up to around 162cm tall. It sits right at that tricky point where kids bikes feel too small but most adult frames are still too big. The Dimension 27.5 fills that gap with full-size 27.5" wheels and wide-range gearing in a frame that's still proportioned for growing riders, making it a solid kids-to-adult transition bike.
Full-size wheels, junior fit
Running 27.5" wheels, the same size found on many adult hybrids and mountain bikes, the Dimension 27.5 rolls faster and carries momentum better than smaller-wheeled alternatives. But Ridgeback hasn't simply shrunk an adult frame. The geometry, reach, and contact points are scaled for younger riders, so it feels like their bike from the first ride.
Gearing for real riding
The Shimano Essa 8-speed drivetrain covers hills, headwinds, and faster flat sections comfortably. It shifts cleanly and holds up to daily use, whether your child is riding to school, out with friends, or on longer weekend routes.
Light aluminium build
The aluminium frame, fork, and components keep weight down, which matters more than people think at this age. A lighter bike means less effort on climbs and a more enjoyable ride over longer distances, the kind of thing that keeps teenagers wanting to get out rather than leaving the bike in the shed.
Sized for younger riders
- Easy-pedal cranks proportional to a child's leg length, positioned for smooth, natural pedalling
- Narrower handlebars and smaller-diameter grips for proper control and safe brake reach
- A lowered frame for easier mounting and standover clearance
Tyres
Puncture-resistant Nutrak by Vee Speedster tyres use a gravel-style tread that grips well on roads, lanes, and tracks without dragging on tarmac. Reflective sidewalls add visibility in low light, practical for school commutes through the darker months.
At a glance
- Frame: lightweight aluminium
- Fork: aluminium
- Wheel size: 27.5 inch
- Gearing: Shimano Essa 8-speed
- Tyres: Nutrak by Vee Speedster, puncture-resistant, reflective
- Colour: Greenwich Green
Who is it for?
Teenagers and older children who need proper gearing and full-size wheels but aren't quite ready for an adult frame. The Ridgeback Dimension 27.5 Greenwich Green works well for school commutes, weekend rides, and longer trips on country lanes. The Greenwich Green finish looks smart without being flashy.
If you're comparing this to the Dimension 24, the step up to 27.5" wheels and 8-speed gearing suits children who've outgrown the smaller frame and are riding further.
The Ridgeback Dimension 27.5 junior bike is for sale in the UK through our shop. If you need sizing advice or want to compare Ridgeback junior bikes, our team is always happy to help.