This 20 inch kids’ bike is the ideal multi purpose geared bike for 5 or 6 year olds with a minimum inside leg of 52cm. Wheel Size: 20″ inchWhy buy a Frog 52?- Lightweight but sturdy Frame – Tektro brakes with small easy to reach brake lever – 8-speed Shimano easy-change thumb-shifter gears – Patented Frog cranks for easier pedalling – Quick release seat post for easy height adjustment – Two sets of tyres: hybrid and off-road – Free 5 year warranty on frame and forks – Reflectors, mudguard* and bell included.