Axle end caps for alternate frame specs are included (except for Boost hubs) and can be swapped without tools Sealed cartridge bearings Angled flanges provide optimum spoke geometry Durable Double Time four pawl mechanism offers quick engagement Quick Release included New in Retail Box Type Rear Brand SRAM MPN Does Not Apply Spoke Holes 28 Hole Axle Diameter QR / TA 12x142 mm Color Black UPC Does not apply Part Type Bicycle Part Part Type Bicycle part Hub Drilling28H HUB/BRAKE COMPATIBILITY6-Bolt Disc Weight295g ColorBlack .