Koozer FX200 Rear Single Speed Bike Hubs Street Track 10x120mm 32H 14T

KOOZER FX200 fixed gear bicycle hub, Two sealed Bearings for front and rear hubs , aluminum body and steel axle, both are lightweight and strength.   Material: aluminum alloy6061(body) steel(axle) Spoke hole: 32 Gauge: 14 Sealed Bearing:   2pcs Axle&Built-in size: 10×120 mm Accessory: sprocket x1 nut x2 spacer x1 lockring x1 Weight: 274 grame(excluding accessories), 385 grame(including accessories) color:black