... frame 3) Handle bar: bullhorn type bar for fixed gear bike, alloy 4) Stem: alloy stem 5) Tire: ... parts 7) Hub: flip-flop hub, with fixed gear 16T and freewheel 8) Crank: alloy crank, 5 arms ... brake, alloy, 10) Rim: alloy rim, 700C, Deep V type 11) Seatpost: alloy seatpost 12) Pedal: alloy pedal, ... steel/hi-ten bicycle and parts ,kid’s bicycle and gear bicycle , such as bicycle frame, front fork, handlebar ...