Crank Brothers XL Spindle Kit. Features: 5mm longer spindles to fit 2010-current Crank Bros pedals (57mm instead of 52mm) Wider stance for greater All Mountain and Downhill control Also a solution for those wanting to equalize Q-factor between two bikes Includes spindles, seals and cartridge bearings for a pair of pedals (refresh kit) Specs: Description:XL spindle kit, 2010-current Crank Bros pedals