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Shimano Dura-Ace 1/8" Track Cog

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MSRP:$41.00
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Shimano's Dura-Ace Track Cog threads onto standard 1.37" x 24 TPI track hubs and is available in multiple sizes to suit every track, race, or workout.

NJS approved. Compatible with 1/2" x 1/8" chains.

Cassette Type: Freewheels/ Fixed Cogs 

A guide to understanding and calculating bicycle gear inches.

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