ALTA SFW 22T x 1/8 Freewheel Brown | 1.37x24 TPI Threaded Single Speed Cog.
ALTA Freewheel 22T x 1/8 SFW Brown | 1.37x24 TPI Threaded Single Speed Standard | Fits Flip-Flop Hubs BMX Cruiser. Model: SFW. Uses astandard freewheel removal tool that matches the SFW interface (not the 8-key LM08 style).