ACS Single-Speed FreewheelsThree-pawl engagement for stronger hold with engagement every 12 degreesRemoval notch pattern allows for better frame clearanceDurable cold forged CNC machined freeweheelItem SpecificationsColorGun MetalWeight181.4gIntended UseBMXCassette Body TypeThreaded MetricFreewheel Teeth18teethFreewheel ThreadEnglishChain Compatibility3/32"