Precision machined from hardened cro-mo steel right here in the USA, these are some of the finest, roundest, longest-lasting cogs available.

Available in 1/8″ or 3/32″ widths in sizes ranging from 13-22t.

FYI: All track cogs have 1.37″x24tpi threading. ALL OF THEM. Any threaded cog can be used on any threaded track hub.

Specifications

standard 1.37″x24tpi threading

sizes: 13t-22t

chain compatibility: 1/8″ or 3/32″

phosphate black finish

Production and availability info

Despite our friends at EAI no longer operating as an importer or distribution company, a longtime senior member of their staff has continued producing Deluxe, Superstar and Gold Medal Pro cogs using the same machine shop in Southern California that has always made them, to the same high quality standards you’ve come to expect and rely on.

We will continue to regularly stock EAI cogs, so there is no need to buy them for unreasonably inflated prices on eBay.