All-City Fixed Track Cog Black 18t

All-City Black Machined Track Cog
Picture is of the 15t and 16t cogs (17t and 18t cogs are cut out, and NOT Solid)

Same cog as the polished but in chromoly with a black oxide finish. A high performing excellent value cog for the baller on a budget. 15 and 16 are solid, 17 and 18 have cutouts for weight savings.

* Track Cogs MUST be installed properly so that you DO NOT dammage the cog or lockring, hub, or even die if installed improperly.

Track Cog and Lockring Instructions