All-City 13T x 1/8" Track Cog Black

All-city's great value, standard track cog available in the most popular sizes.

• 16t and lower are solid, 17t and higher have cutouts
• Chromoly steel; CNC precision machined
• 1/8" width cogs; Threads are 1.37" x 24 tpi
• Tooth Count: 13