Dura Ace cogs are made from hardened steel for long life.

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

Specifications

• NJS stamped

• chain compatibility: 3/32"

• standard 1.37"x24tpi threading

• size 13t

Closeout info

Items labeled as "Closeout" have either been discontinued by the manufacturer and/or items we will no longer be stocking, and have never been installed or used.

All sales are final on Closeout items.