Fit for use with Centerlock disc brake systems, this superb aluminium Shimano hub keeps a low weight to give high-performance on every outing. Featuring high-quality XTR 9100 labyrinth and contact sealings, as well as cup-and-cone bearings, this XTR model ensures a smooth and supportive roll. With 32 spoke holes helping to reinforce the rigidity of your wheel and the Boost axle sizing further stiffening your wheel build, this is the ideal hub for the rampant mountain rider.