Great children's bike suitable for mountains. Shimano equipped. Steel frame. 6 gears with Derailleur with twist shift grip shifters. Power SFT-332P gears. Front V-type and rear V-type brakes. Dual suspension. Weight when fully assembled 14.7kg. 13 inch frame size. 20 inch wheel size. Inside leg 22-24 inches. ATB tyres. Dual suspension. Suitable for ages 8 years and over.