Item Name: Disc Brake Hub Material: Aluminum Alloy Specification: HG, XD, MS Features: 32 Holes, Sealed Bearing, 8-11 Speeds Slot: 32H Size Details: Hole Spacing: 58mm/2.28" (Approx.) Disk Hole Spacing: 44mm/1.73" (Approx.) Hole Diameter: Suitable for 14G/15G Spoke(Diameter: 14G 2mm) Front Hub Size: 10.8cm x 6cm/4.25" x 2.36" (Approx.) Rear Hub Size: 14.5cm x 6cm/5.71" x 2.36" (Approx.) Description: Owing to the simple structure, the bicycle hub is easy and convenient to operate. This 32H bicycle hub has classic 6 claws and 72 HD system that has a high efficiency and good sound transmission. Made from aluminum alloy material, the hub is durable and wear resistant. The length of front hub is 10.8cm, and its width is 6cm. The length of rear hub is 14.5cm, and its width is 6cm. It is suitable for quick release: 9x100/15x100, and barrel shaft: 10x135/12x142. The hub is suitable for outdoor cycling. Notes: Quick release is not included. To replace the hub, please make sure that the flange size is the same as the disc mounting hole pitch. If the flange width is different, the spokes need to be replaced. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Front Hub 1 x Rear Hub