Specifications Hign-concerned Chemical:None Type:MTB Bike Hubs Size:135mm Number of Holes:32 holes Axle:qr Freehub:HG Position:Front + Rear Braking System:Disc Brake Spoke Hole:29 - 36 Material:Aluminum alloy Category:Bearing Hub Hub Hole Number:32 holes ANTO BIKE are the largest supplier of China Dear friends, welcome to the ANTO BIKE store, the largest wholesaler of hubs. We constantly improve our products and services, and provide high-quality hubs. All hubs (XM490; XM470; XR420; XM480; RS330; RS290; RS390; XM460; BM440 and other models) are provided with a one-year warranty. Welcome friends to buy. Alex Material: AL7075 Weight: 620g/pair with QR Pawls: 6 Click: 72 Spoke Holes: 32 Color: Black, Red, Grey, Gold, Blue Version: QR or THRU QR Version: Front:9 x 100mm, Rear:10 x 135mm (with standard 5mm diameter quick release) Thru Version: Front:15 x 100mm, Rear:12 x 142mm (Without quick release) We also have 28 and 36H black, welcome to orderYou can also submit the order directly, and the message needs 28H or 36H to us..Please contact me... There is also an SRAM 11S XD tower base option. Please feel free to contact us if you need it.