Al Alloy Bicycle Crankset & Chainring 130BCD Crank Arm 170mm Chain Wheel 45-58T
Material: Aluminium Alloy. 1 set crank set (or + 1 chain ring). Arm Length: 170 mm (5 catch, screw hole). Universal tooth profile, compatible with single speed 3/6/7/8 speed. Suitable for: BMX/Folding Bike/Universal Bike.