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    Surly Single Cog splined 3/32
    Surly Single Splined Cassette Cog 14 Tooth 3 / 32
    Surly Single Splined Cassette Cog 15 Tooth 3 / 32
    Surly Single Splined Cassette Cog 16 Tooth 3 / 32
    Surly Single Splined Cassette Cog 17 Tooth 3 / 32
    Surly Single Splined Cassette Cog 18 Tooth 3 / 32
    Surly Single Splined Cassette Cog 19 Tooth 3 / 32
    Surly Single Splined Cassette Cog 20 Tooth 3 / 32
    Surly Single Splined Cassette Cog 21 Tooth 3 / 32
    Surly Single Splined Cassette Cog 22 Tooth 3 / 32
    Surly Single Cog splined 3/32
    Surly Single Splined Cassette Cog 14 Tooth 3 / 32
    Surly Single Splined Cassette Cog 15 Tooth 3 / 32
    Surly Single Splined Cassette Cog 16 Tooth 3 / 32
    Surly Single Splined Cassette Cog 17 Tooth 3 / 32
    Surly Single Splined Cassette Cog 18 Tooth 3 / 32
    Surly Single Splined Cassette Cog 19 Tooth 3 / 32
    Surly Single Splined Cassette Cog 20 Tooth 3 / 32
    Surly Single Splined Cassette Cog 21 Tooth 3 / 32
    Surly Single Splined Cassette Cog 22 Tooth 3 / 32

    SURLY CASSETTE COG

    Our cassette-type cogs are designed to fit on standard Shimano compatible freehub bodies. These cogs have a tall tooth profile that is essential for preventing chain skip from the extra torque a singlespeed drivetrain encounters. In addition to being a stellar SS cog, the cog base width (where it contacts the freehub body) is 4.35mm, so you can stack a few of them up and use a 9-speed shifter for a simplified multi-speed drivetrain. This width also prevents it from ruining the freehub body as a result of digging grooves into it like skinny stamped cogs have a tendency to do. Surly cogs are machined from SCM415 CroMoly steel, then heat-treated for toughness and chrome-plated for surface hardening and enhanced chain lubricity. Our cogs will work with 6-9-speed 3/32" chains, although we recommend the inherently updated quality of an 8 or 9 speed chain. They are also available in every increment from 13-22t, so you can select that perfect gear.

    Singlespeed Gearing 101

    Singlespeed Drivetrains

    Cassette Cog Instructions

    		  

     
    *Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions

    *Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

    *Specialized Bicycles are available for home delivery nation wide.

    *AMFLOW Bicycles are available for purchase online, but MUST be collected from the store.

    *TREK Bicycles are available for purchase online, but MUST be collected from the store.

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