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The Shimano XTR M9110-B Rear Hub is designed specifically for Shimano's 12-speed XTR drivetrain, with the MICRO SPLINE FREEHUB delivering a lightweight construction that works seamlessly with the system's new small 10-tooth cog. As the name suggests, MICRO SPLINE features smaller freehub splines that help eliminate damage on the lightweight aluminum freehub. The new hub also features SHIMANO's quieter SCYLENCE technology that provides rapid acceleration and higher rigidity for quick, 7.6-degree engagement. The freehub body is constructed of two driver plates that completely disengage when you stop pedaling, eliminating any freehub ratchet sounds while coasting. Shimano Center Lock disc rotor mounting.
Cassette Body: 12-speed and 11-speed M9100 cassettes
Hub Spacing: 148mm
Axle Size:12mm TA
Spoke Drilling: 28 or 32 hole
Centerlock Lockring Included
148x12mm Thru-Axle Not Included