Shimano Dura-Ace Track Cog Lockring - Black Steel, 1.29" Left-Hand Thread MT Trail Sport Engineered to meet Bosch's strict

Engineered to meet Bosch's strict standards

enhancing overall riding efficiency and wheel responsiveness

and cyclocross events

then engage the handle to lock it shut when finished

and internal routing for dynamo hubs

Shimano Dura-Ace Track Cog Lockring - Black Steel, 1.29" Left-Hand Thread MT Trail Sport Engineered to meet Bosch's strictEnhance your track bicycle's performance with the Shimano Dura Ace Track Cog Lockring, a precision engineered component designed for ultimate durability and reliability. Crafted from high quality black steel, this lockring features a 1. 29" diameter with 24 threads per inch (TPI) on a left hand thread, ensuring a secure fit and smooth operation on your track bike drivetrain. Constructed with Shimano's renowned engineering standards, the Dura Ace Track