Very literally the finest cog money can buy.

Made by Euro-Asia Imports for professional track use, the acclaimed Gold Medal has flawless threads, roundness and precise tooth profiles for the smoothest possible drivetrain ride quality.

The golden titanium-nitride plating over high quality stainless steel increases strength, durability and lubrication. If cared for properly, these cogs last virtually forever.

Combine with an Izumi Super Toughness chain and a top quality chainring like a Sugino Zen to fully optimize your entire drivetrain's performance (and achieve unlimited baller status on the track or the street).

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