The DEORE XT FH-M8210-B rear hub offers improved reliability and performance through an enhanced sealing design and steel cartridge bearings with adjustable preload, resulting in an easy-to-maintain and smooth rear hub. The FH-M8210-B is lighter and features an improved engagement angle (max. 3.5 degrees). It is available with 12x148 Boost spacing and traditional 28h/32h drilling.