Muddyfox Tornado 20 Inch Dual Suspension Mountain Bike-Boys. This Muddyfox Tornado kids' mountain bike has a solid black frame and quality Shimano gears. A great bike for kids, suitable for town and country. Black steel frame. 6 gears with Twist grip shifters. Shimano gears. Front V-type and rear V-type brakes. Weight when fully assembled 15kg. 34cm / 13.4 inch frame size. 50.8cm / 20 inch wheel size. Suitable for 53 to 66cm inside leg measurement. Suitable for ages 8 to 11 years. Mountain bike style tyres. General information: Some assembly required to fit front wheel, adjust brakes, fit pedals, saddle and handlebars. WARNING(S): Not suitable for children under 3 years old. To be used under the direct supervision of an adult. Protective equipment (helmet, knee pads and elbow pads) should be worn, not to be used in traffic. Additional Information Bike Tyres The tyres are semi deflated - pump required.