Fixed gear bike is a bicycle without one-way free wheel, the wheel and pedal are always in linkage state. That is to say, the rear flywheel is fixed on the hub and cannot rotate freely. The rear flywheel is connected to the chain ring through a chain. The force acting on the pedal will be amplified by the gear ratio and then act on the rear wheel, making the pedal unable to maintain a stationary sliding state. This fixed gear bike adopts the company's special steel frame for retro racing, high strength and less solder joints, durable, and the frame geometry is more in line with the retro American aesthetic. The wheel size is 700C which is more suitable for racing and has the ability to reduce wind resistance and increase strength. The specific wheel set arrangement highlights the retro nostalgia. Aluminum stem, hub and rim make this bicycle more perfect in details, making the riding lighter and smoother, so that you can enjoy the riding without worries. American racing culture can be said to have a deep influence on retro racing. Retro racing fans are committed to finding a steel frame that suits them, and we are also working on making a better steel frame fixed gear bike. ModelHIF011s FrameSteel,34*38*105L ForkSteel,28.6*25.4*185mm Head set1-1/8",28.6*34*30 Handlebar22.2*560mm*1.4T,steel,CP Handle stem-7 degree,aluminum BrakeClipper Brake SaddleSoft black bike saddle Pedal9/16" CPSC,bead Crankset1/2*1/8*44T*170L Hub3/8"*14G*32H,aluminum Rim700C,double wall,F/V,aluminum SpeedSingle speed Tire700*25C,rubber Tube700*25C,butylWholesale Fixed Gear Bike website:http://www.joykiebikes.com/road-bike/fixed-gear-bike/