Specifications Hign-concerned Chemical:None Type:MTB Bike Hubs Size:135mm Number of Holes:32 holes Axle:qr Freehub:HG Braking System:Disc Brake Spoke Hole:29 - 36 Material:Aluminum alloy Category:Bearing Hub Hub Hole Number:32 holes MTB Hub NBK 4 Sealed Bearing Hub 28 / 32 / 36 Holes Mountain Bike Hub Disc brake Aluminum alloy Bicycle Hub 8 9 10 11 Speed MT006F/R is the best-selling product of 2015-2024. Its front and rear tube shaft four in one structure, elbow wheel hub. Equipped with NBK Bearing, equipped with black freehub, compatible with For SHIMANO HG 8-12 speed and SRAM NX 12S SX 12S We are factory distributors. hub always adheres to the principle of customer first, and its products have good waterproof performance, light weight and quality assurance. For the sake of consumers, each product has a shelf life of one year to ensure customer service. Shell materialAl6061-T6 case;AL6061-T6 Freehub body : Shimano HG 8-12 Speed Spoke : 14G*28H/32H/36H O.L.D : Front 15mm/9mm*100mm Rear 10mm*135mm.12mm*142mm Weight : (Total: 395g+(-)5g) Bearing : Front 2 / Rear 4 Pawls : 4 Pawls 3 Teeth 48 Clicks Warranty : 12 Months