Versatile Use : Mountain bike flat pedals for all mountain, enduro, freeride and downhill Pedal Engagement :SPD appropriate, single sided clip-in mechanism. Together with a pair of Shimano SPD appropriate cleats Grease Renew System : Patented GRS enables you to prime up grease with out getting your fingers soiled High quality Manufacturing : Precision CNC’d from 6061 alloy with 6 anodized colour to select from Axle System : 9/16″ CrMo axle with sealed cartridge bearing and DU bushing