Shimano Dura-Ace 7600 Track Cog - SilverShimano Dura Ace 7600 Track Cog You've got to have the right ratio for the track, and Shimano's Dura Ace cogs come in a range of tooth counts so you can always be prepared. Manufactured from durable chromoly steel, each cog is machined to run perfectly straight.

I-Spec II compatible — this setup yields more space on the handlebar and a cleaner appearance

Chain catcher

Hecto XL and Micro XL Drives

Run at lower pressures for increased grip in wet conditions and loose rock

Slip-on opening for simplicity and minimalist look

and two wicking foam blocks

Removable Chin bar with easy fit system

Twice as strong as a regular butyl tube

Reflective panels on the arms and back increase visibility in low-light and rainy conditions

Shimano BB-RS500 Press Fit Bottom Bracket

The Campagnolo EKAR 13-Speed Cassette offers full range to match or exceed any 2x systems

Designed to minimize chainslap and noise