Features: Nino Schurter approved Pedal Weight (pair): 305 g Cleat Weight (pair): 64 g Size: 56 x 41 x 17.5 mm Body Material: aluminum extruded / CNC machined Spindle: CNC machined cr-moly Pedal Bearings: sealed bearings / IGUS bushings Cleat System: X1E / X1 / X1F / X3 (HT exclusive system) Caution: Q-factor 54.5mm