Shimano Dura Ace track cog

Dura Ace cogs are made from hardened steel for long life, are NJS stamped and available in 13t-16t sizes. 

ⓘ All track cogs have 1.37"x24tpi threading. Any threaded cog can be used on any threaded track hub. 

specifications

• NJS stamped

• chain compatibility: 1/8"

• standard 1.37"x24tpi threading

• sizes 13t-16t