2.5-piece design Bolt-drive crankMaterial: full heat treated 4130 Cr-MoLenght (mm): 170, 175Spindle: 22mm hollow Spindlesplines: 48Extra info:strong lightweight crank,rhd & lhd compatible,2 sprocket bolt holes on each side,comes supplied with assembly tool and 6mm allen keyWeight (kg): 0.934Color: black, white, blue, chrom, acidized black