A clean, tough, and simple rear axle designed for Specialized bikes. The axle is constructed from 7075 aluminum and made to manufacturer's exact specifications. The axle features a 6mm Allen key for tightening, with an additional 6mm Allen key integrated on the drive side in case the non-drive side becomes rounded. The 172mm length fits many Specialized models from 2017-2021. For a complete compatibility list, refer to the burgtec.co.uk website.