Bicycle Bottom Accessories Bearing Mr22237 & Mr2437h8-2rs Bearings

1 x Bike Bearing（MR22237）. Bicycle Bike Bottom Bracket Bearings For SRAM for GXP. The hub is the part of your bike's wheels (front and rear), which connects to the wheel's rim via the spokes and through which the axle is fitted, enabling the wheel to ly on two sets of bearings.