Koozer FX200 Single Speed Bike Street Track 9×100 10x120mm 20H 24H Hub Pair 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:  20F 24R

Gauge: 14

Sealed Bearing:  front 2/ rear 2

Axle&Built-in size: front 9×100/ rear 10×120 mm

Accessory: front nutx2 / rear sprocket x1 + nut x2 + spacer x1 + lockring x1

Weight: front  230grame/rear 274 grame(excluding accessories), 645 grame/pair(including accessories)

color: black