The new XTR HB-M9210-B front hub offers improved reliability and performance. Stainless steel cartridge bearings with pre-load adjustment and new seal designs mean less rolling resistance. This front hub is offered in a boost configuration (110x15) and in conventional 28H and 32H options. - Drilling/Spacing Options: Available with traditional 110x15 center distance and 28H and 32H drilling options. The new XTR HB-M9210-B front hub offers improved reliability and performance. The stainless steel cartridge bearings with preload adjustment and new seal designs mean less rolling resistance. This front hub is offered in a boost configuration (110x15) and in conventional 28H and 32H options. - Rotation: The cartridge bearings, optimized seal designs, and preload adjustment make the hub roll smoo.
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