Wolf Tooth Shift Downhill Clipless Pedal. Features: Optimized for Gravity riding with a large pedal body and extra grip Eight optional/replaceable rear-loading traction pins per pedal (four per side) Premium stainless steel axles, bindings, and hardware Compatible with SPD cleats; Wolf Tooth cleats included 15mm thickness, 410g weight, platform area 1,201 square mm Adjustable Q factor in 4mm increments by rearranging spacers and bearings inside the pedal. Allows Q factors of 51, 55, or 59mm. This is simple enough for anyone to do at home Proven axle and bearing design carry over from Waveform aluminum pedals Fully serviceable with all replacement parts available Specs: Model: Shift DH Clipless Pedal Spindle: Stainless Steel Size: 9/16" Body Material: Aluminum Color: Black Weight: 410g