SF-MX30 Shimano 16 tooth single speed freewheel

*This is the same as our other listing but we bought these before a price increase so the just cost less!  Same great black & silver Shimano product!

1.370 x 24tpi English threaded. 16 teeth for 3/32" chain, usable with a 1/8" chain, too. Shiny finish on the cog, black center.  Takes the nice thick 4-prong remover tool.