Surly Single Cassette Cog 15t for Shimano Freehub opolisoptics Use the desk for studying

Use the desk for studying or working

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Surly Single Cassette Cog 15t for Shimano Freehub opolisoptics Use the desk for studyingExperience the precision and durability of the Surly Single Cassette Cog, designed for those who appreciate quality in their cycling gear. This premium cog offers versatility and reliability, making it an essential addition to your bicycle drivetrain. Designed primarily as a singlespeed cog, it can also be stacked for use with 9 speed shifters. Compatible with Shimano freehub splines for easy installation. Constructed from SCM 415 hardened chromoly