Ukraine A bicycle is a wheeled vehicle powered by foot pedals. Bicycles with two wheels, there are also tricycles. A bicycle is a means of transportation for urban, tourist, sports and mountain riding style. Bicycle frame alloy Aluminum, Steel, Chromolybdenum, Carbon. Switches Coin, Semi-automatic, Tensioner. On the rocker shift system Shimano Tourney, Deore, XT, SLX, Alivio, Acera, Altus, Sis, Sram. On planetary shifting system Shimano Nexus, Sram, Sachs, Spectro, Torpedo. One gear bikes. Bicycle Wheel Size 12 ", 16", 18 ", 20", 24 ", 26", 27.5 ", 28", 29 ", 32", 36 "" Saddle, Trunk, Handlebar, Lock, Fenders, Tires, Rubber , Camera, Ring, Pump, Rims, Fork, Dynamo, Dynamo hub, Headlight, Stop. Men's bicycles, Women's bicycles, Adult bicycles, Cheap bicycles, City bikes, Hybrid bikes, MTB mountain bikes, Full suspension bicycles, Niner bicycles, Teen bicycles, Children's bicycles, Road bikes, Dirt bikes, BMX bikes, Trial bikes, Tricycles, Folding bicycles, Electric bicycles, Electric scooters, Unicycles bicycles, Tandem bicycles, Chopper bikes, Cruiser bicycles, Fat bikes, Scooters, Cross bikes, 36er Bike / Bicycles bicycles.