Cog Material: High tensile steel. The internal thread has high precision, smooth rotation and easy maintenance.
Easy to Install: This freewheel characterized by smooth rotation without much noise. High precision internal thread ensures close connection with bicycle hub.
Unique Sprocket: The sprocket combines a specially positioned shift ramp and tooth profile to improve chain control during shifting.
Compatibility: Sh*m*n* and Sr*m transmission system. Compatible with standard threaded bicycle rear hub. Suitable for MTB, BMX, E-bike, hybrid bike, fat bike, cruiser bike and so on.