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Ridgeback Dimension 20 Kids Bike


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Product Details

Ridgeback Dimension 20

This Ridgeback for boys and girls from around 5 to 10 years old stands out for being a lighter weight kids' bicycle, perfect for pavements, cyclepaths and roads.

  • The Ridgeback Dimension street bike is a lighter weight alternative to a kids' MTB
  • Its 6061 aluminium frame is as lightweight as you'll find at this price
  • Major components such as the wheel rims, brakes, handlebars and stem are aluminium alloy so they're also lighter weight than steel parts
  • Its steel rigid fork is lighter weight than any suspension fork
  • Its 20x1.5 inch tyres are lighter weight and smoother rolling than 2 inch wide knobbly treads
  • These smoother tyres still offer the cushioning, comfort and grip you'd expect on an adult hybrid bike's tyres
  • A Shimano 7-speed derailleur and Revo twist shift lever offers young riders a simple introduction to gear shifting
  • The 7-speed Shimano cassette is fitted to a genuine Shimano freehub - a sign of quality and reliability usually only found on far more expensive adult bikes
  • V-brakes have all the stopping power a young 'un needs, and they're probably the easiest to service
  • The 250mm long alloy seatpost offers room for growth
  • Did we mention that this Ridgeback Dimension is probably the lightest weight kids' bike you'll find at this price?
  • See our blog, What to look for when buying a kids' bike

Here's how Ridgeback describe the Dimension 20

'Lighter and more versatile than an MTB, a Dimension series Ridgeback combines the principles of a Metro hybrid with a specification and features designed for smaller riders.

Dimension combines a triple butted alloy frame with lightweight and robust components ideal for regular use.

Utilising Shimano cassette hubs, stainless spokes and alloy rims, the Dimension has an all alloy parts mix to ensure that its weight remains low.

With a high quality specification to provide the necessary durability to allow the bike to be passed on to a second child, a Ridgeback Dimension is ideal for younger riders who cycle more frequently.'

Technical Specifications

Ridgeback Dimension 20 
Frame20" 6061 Heat Treated Aluminium
Fork20" Steel
Headset1 1/8 Aluminium w/ Anodised Spacers
ShiftersShimano Tourney RS45 Revo-Shifter 7-Speed
Rear DerailleurShimano Tourney FT55
Front DerailleurNone
Chainset36T Silver w/ Silver Cranks and Guard
Bottom BracketSealed Bearing
ChainShimano UG51
CassetteShimano HG20 7-Speed
Rims20" Alloy Single Wall
HubsJY-733F Front / Shimano RM30 7-Speed Rear
Tyres20" x 1.5"
BrakesAlloy V-Brake
Brake leversResin Lever w/ Adjuster
Handlebars540mm wide / 9 degree bend / 20mm rise
Grips / TapeJunior Grip
Stem150mm Rise w/ 60mm Extension
SaddleRidgeback Black Junior Saddle
Seatpost27.2mm x 250mm
ExtrasUser Manual
Manufacturer's Published Weight9.5kg


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.