Shimano m647 clipless spd mtb pedalsdesigned for the rigors of bmx as well as off road racers dual sided pop up bindings that position the body at 125 degrees angle for easy and fast entry cleat tension adjustment with indicators for each rider preference featuresspd cleat surfaces both pop up floating cage yes spindle thread bc 916 x 20tp ispindle chrome moly cartridge spindle yes cleat retention indicator yes cleat retention adjuster yes mud shedding design yes pedal body alum