Shimano xt front hub t780shimano performance front hub for use with rim brakes features alloy axle for lightweight and rigidity when used with suspension forks double contact sealing with internal grease sleeve keeps out water and dirt from bearings and ensures constant smoothness and longevity whilst keeping the grease in place ultra smooth bearing races provide precision low friction rolling quick release lever and adjuster nut are lightweight and easy to adjusta 2 year warranty is offered wi