Shimano
Product ID: GM091720-68
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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.
Overall rating: 5.0 / 5 from 2 reviews.
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"I’m using this 13t 3/32 track cog with a narrow 3/32 Izumi V Super Toughness chain and Wolf Tooth 50t drop stop chainring. Perfect functionality, relatively quiet as long as the drivetrain is kept clean and well adjusted. I wanted to up the gearing on my fixed gear so I needed to get a 13T cog because Wolf Tooth does not make anything bigger than a 50T chainring of that particular type."
"Can’t go wrong with Dura Ace track components. Used this in a Zipp disc and works flawlessly."
