High value, economical 1/8" track cog. Standard 1.37" x 24 TPI (English) thread Machined chromoly steel 16T and lower have a solid design, 17T and higher feature weightreducing cutouts
High value, economical 1/8" track cog. Standard 1.37" x 24 TPI (English) thread Machined chromoly steel 16T and lower have a solid design, 17T and higher feature weightreducing cutouts