Description: - Bike 32 Holes 6 bolts Disc Brake hub - Made of high quality aluminum alloy material, durable and lightweight. - Competible with 8/9/10/ rotary freewheel. - Low-friction seals effectively shut , mud and . - Internal grease sleeve helps maintain and increase service life of hubs.Specification: - Material: Aluminum Alloy - Spoke Holes: 32 - Front Hub : 100mm/3.94inch - Rear Hub : 142mm/5.59inchPackage Includes:As You Choose:1 Piece Front HubOR1 Piece Rear HubOR1 Piece Front Hub1 Piece Rear HubNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!