ACS Paws 4.1 Freewheels 1.375x24TPI ACS has set the standard for freewheels for almost 2 decades. Stronger, less expensive, and easier to replace than cassette hubs. The Paws 4.1 has a black center ring, with a nickle plated sprocket ring. Fits 3/32" or 1/8" chains.
1/2 x 3/32 or 1/2 x 1/8 chain compatible
Cold forged chromoly construction
12 Degree engagement angle (30 steps total)
Nickle plated sprocket ring
Uses a 4 prong removal tool
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