Teeth: 58T, Crankarms: 170mm, BCD: 130mm (Not include Bottom Bracket)
Pedal Size: 9/16". Chain Size: Standard 1/2" X 1/8" All new crank arm design—much stronger for faster and more aggressive riding
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 Bicycle, Folding Bike, BYA 412 P8, P18, SP8, Dahon Folding Bike