TEETH: 60T, CRANKARMS: 170mm, BCD: 130mm (Not include Bottom Bracket) Pedal Size: 9/16". Chain Size: Standard 1/2" X 1/8" 170mm crank arm length without any overlap of crank arm and chainring bolt Material: aluminum alloy 7075-T6. Burly and lightweight forged crankset for ultimate strength and reliability FIT for: Single Speed Bikes, Track Road Bike, Fixed-Gear Bike etc