Paws 4.1 freewheels continue to legacy of ACS competition quality freewheels.  Designed for high-torque applications, they feature 3 pawls engaging simultaneously every 12°.

Paws 4.1 Freewheels thread onto standard 1.375"-24tpi hub threads (if you currently have a 16T or larger freewheel, it is most likely compatible).  Sprocket pitch is 1/2" x 3/32", compatible with both 3/32" and 1/8" wide single speed chains.

Paws 4.1 Freewheels feature 4-notch removal, compatible with ACS and other brand removal tools.  Nickel plated sprocket ring with black inner body.

Thread size: 1.375"-24tpi