20" Mountainbike Bicycle 7 Speed Bicycle Road Bicycle MTB Bike City Bike Specifications Bicycle material: carbon steel Upholstery material: leather+spongeTyres material: rubber Frame structure: welding bicycle Color: Red/Green Size: 20" Load capacity: 85kg/187.39 lbs Brake system: front: Clamp Gate; Back: Hold Gate Frame type: Rigid frame Package included 1* 20" Bike mountain bike Comments Please allow the slight color difference by recording light and 1-3cm error due to manual measurement, and make sure you don't mind bev Main Features High precision flywheel: The gearbox can rotate the bike stably and does not let the chain fall off so easily. And the circuit is faster and more accurate. Comfortable cushion: The leather surface and sponge-filled cushion can.