Zycle Fix ZF-GMDR-48 Gum Drop Fixed Gear Bike, 48cm/One Size Frame 48 cm Frame: HI-tensile Steel Frame and Fork Headset: NECO 1-1/8" Threadless Handlebar:Pursuit Bar Brakes: Front Radius Brakes with Radius Levers Chain: KMC Bottom Bracket: NECO Crankset: 46 Tooth ZF Crank Rims: 700c - 40mm Deep V Rims Hubs: Quandro with Flip-flop Option, Fixed gear or Free-wheel 48 cm Frame: HI-tensile Steel Frame and Fork Headset: NECO 1-1/8" Threadless Handlebar: Pursuit Bar Brakes: Front Radius Brakes with Radius Levers Chain: KMC Bottom Bracket: NECO Crankset: 46 Tooth ZF Crank Rims: 700c - 40mm Deep V Rims Hubs: Quandro with Flip-flop Option, Fixed gear or Free-wheel