It is the ideal multi-purpose bike for 5 to 8-year-olds with an average inside leg of 53cm. The handlebars can be lowered or raised within a range of 40mm and adjusting the seat height is easy to do at home with the quick release system. This means a Frog Bike will grow with your child making it a great investment. The bike also offers a lower bottom bracket position to ensure a safer riding position with feet closer to the ground, whilst allowing for a greater leg-length range to be accommodated. An additional 10mm spacer is placed above the handlebar stem to give the option to raise the handlebars higher as your child grows. Approx Age 5-7 Wheel Size 20″ Bike Weight 8.15kg Frame 6061 T6 heat treated Aluminum alloy, seat tube 11″ (280mm) Fork 6061 T6 heat treated aluminium alloy Front Hub Quando, Aluminum, sealed hub, QR, 20 hole Rear Hub Quando, Aluminum, sealed hub, QR, 20 hole, Shimano type 8/9spd free hub body Cassette/Free wheel 8-speed, 11-32t Rear Derailleur Shimano Altus, M310, 8-speed Rim Aluminium, 20″, double wall, machined braking surface Seat Clamp Aluminium, QR Headset Neco, 1″1/8 semi-integrated threadless, Frog Bikes top cap Stem Aluminium, 1″1/8, 38mm, 4 bolt clamp Grips/Bar tape Frog Bikes specific, lock on, slim grips Gear Shifter FrogFitTechnology® youth-specific 8-speed with short lever travel and ultraslick gear cable Brakes (F&R) Tektro 836AL, Aluminum, linear pull Tyres Kenda K1047, 20″x1.5, Hybrid, (ETRTO/ISO 38-406) Mudguards Full length, resin, black Accessories box Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters excl. Union Jack- touch up paint supplied, frame protector patches Crank set / Chainring Frog Bikes Patented, 114mm, Aluminum straight arm cranks, 32T chainring, black Bottom Bracket Thun Shorty-ML-SL; square taper, 68/108/107.5 Pedals Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16 Chain KMC, 8-speed Handlebar Aluminium, flat bar, 460mm Brake Levers Tektro JL510, aluminium, easy reach Saddle Frog Bikes child-specific saddle (small), steel rails. Please Note Assembly Required if Posted.