Description:Material: CNC Precision Technology Disc Brake made of Aluminum alloy material, sturdy, durable, rust resistant and high strength

Sealed bearings provide high waterproof performance, low resistance force for smooth rotating

Spoke Holes: 32 Holes, 6 Pawls hub with clear sound, front 100 mm; rear 135 mm

Size Front: 9mmx100mm, rear:10×135mm

Easy to Use: Lightweight and portable, easy to install and quick to remove, suitable for disc brake mountain bikes

Replace Parts: for bike hub repair parts

Application: The cassette body is suitable for most speed cassettes(7-12) (commonly used for HG cassettes)

Specification:Material: Aluminum AlloySealed Bearings: 2 Front bearings; 4 rear bearingsFront 100 mm/Rear 135 mmPawls: 6Hole: 32holesSpeed: 7-12 Size Chart:Front: 9mmx10cm/0

35inchx3

94inchRear: 1cmx13

5cm/0

39inchx5

31inch Package Includes: (Depends on your choice)StyleA: 1 Pair (Front and Rear Hub, Front and Rear Levers)StyleB: 1 Pair With Hat (Front and Rear Hub, Front and Rear Levers, 4 Caps)StyleC: 1 Front ( 1 Front Hub, 1 Front Lever)StyleD: 1 Rear ( 1 Rear Hub, 1 Rear Lever)