The XTR FH-M9210-B rear hub offers improved reliability and performance through an enhanced sealing design and stainless steel industrial bearings with adjustable preload, resulting in an easily maintainable and smooth rear hub. The FH-M9210-B has become lighter and features improved engagement (max. 3.5 degrees). It is available with a 12x148 Boost installation width and traditional 28-hole or 32-hole drillings.