ACS PAWS 4.1 freewheel

This updated version of the ACS Crossfire freewheel allows for the use of a standard 4-prong removal tool without the need to mess with your axle hardware.   It's perfectly safe to install a freewheel on a hub having fixed threading. Anyone saying otherwise is a kook. specifications • durable cold forged cro-mo construction • three-pawl design provides engagement every 12 degrees (30 steps total) • for use with 3/32" or 1/8" chains • gunmetal finish • 16, 17, 18, 20, 22t • uses standard four-prong removal tool (Park Tool FR-6)