Specifications Hign-concerned Chemical:None Type:Road Bike Hubs Size:142mm Number of Holes:24 Holes Axle:THRU Freehub:HG Position:Front + Rear Braking System:Disc Brake Spoke Hole:24 Material:Aluminum alloy Category:Bearing Hub Hub Hole Number:24Holes Disc Brake Road Hub Front 12x100mm Rear 12x142mm Center Lock Sealed Bearing Hub 4 Pawls For HG 8-11V / Sram XDR 12 Speed Shell materialAl6061-T6 case;AL7075-6 axis Freehub body : Hyper Glide 8 9 10 11 Speed / Sram XDR 12 Speed Spoke : 14G*24H O.L.D : Front 12mm*100mm / Rear 12mm*142mm Weight : Front 128g / Rear 232.9g (Total: 355+(-)5g) Bearing : Front 2 / Rear 4 Pawls : 4 Pawls Single Teeth 48 Clicks 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. The MT046 is made of anodized aluminum alloy and is compatible with hyper glide 8-11 speed and sram xdr 12 speed. it's 4 pawls single teeth with 48 ring. MT046 break the traditional way and use disc brake center lock design. It provides stable braking power, is not disturbed by mud, and can free the wheel ring, excellent braking skills, better disc brake wheel group, thus greatly enhances the safety of road cycling.