3-piece designBolt-drive crankMaterial: full heat treated 4130 crmoLenght (mm): 175Spindle (mm): 22 hollowSpindle splines: 48Extra info:american made,wrap-around spindle and pedal gussets for increased strength,rhd & lhd compatible,heat treated swaged crmo arms,hollow flush mount spindle boltsWeight (kg): 0.860Color: black