Single speed crankset Forged AL6061-T6 alloy crankarms CNC alloy 1/8` 46 tooth chainring 42mm chainline with 103mm JIS BB Does not include JIS square taper BB Weights do not include BB 170x46 103mm JIS Square Taper BLK/BLK 144x5B 740g 1 1/8`UPC/EAN/GTIN: 072774224715