- Chainring: snail single speed narrow wide teeth chainring, 30T/32T/34/36/38T round/oval chainring,thickness is 4mm (1.9mm narrow, 3.7mm wide)
- Crank:104 BCD mountain bike crankset. length of crank arm is170mm, crank related holes distance is 74mm, crank weight: 550g, fit 7-12S chains and single/double/triple speed chainring
- Material: Crank and chainring made of aluminum alloy, light weight, high axial strength and compatibility
- Bottom Bracket: Size is 41*24*24 mm can fit bike bottom 68-73mm,ideal for Shimano, FSA compatible. Giant ATX770 ATX770-D XTC750 and so on
- Note:These crank and chainring are only suitable for single speed. Suitable for most mountain bikes ,Compatible With Shimano Sram FSA