BZycle Fix Bicycle Matte Black Prime Series Fixed Gear Track Fixie Bike ReviewbP PP Zycle Fix Bicycle Matte Black Prime Series Fixed Gear Track Fixie Bike P(48=4'8-5'2, 52=5'3-5'6, 55=5'7-6, 59=6'-and taller)PFrame: HI-tensile Steel Frame and Fork Headset: NECO 1-18" ThreadlessPHandlebar: Drop bar Brakes: Front Radius Brakes with Radius LeversPFixed Cog: 15 Tooth Chain: KMC Bottom Bracket: NECO Crankset: 48 Tooth ZF CrankPRims: 700c - 30mm Deep V Rims Hubs: Quandro with Flip-flop Option, Fixed gear or Free-wheel. Novatech Hi-Flange.