Free Shipping on Orders Over $99

Free Shipping Policy

Free Shipping applies to all orders placed for $99 and above
(pre-tax value). Some restrictions apply:

  • Offer valid in the Lower 48 States only
  • Excludes Travel Cases and some other oversize items (prices can be calculated in the cart before checkout)
Take 15% off first full priced item with: SAVE15


Offer valid for 15% off qualifying items.

Some exclusions apply.

For questions, contact us by calling 1.800.627.6664 or Chat Now

Surly BMX Single Cassette Cog

Made with heavy-duty SCM 415 cromoly steel. This is hardened cromoly; looks good, lasts a long time. Designed to fit Shimano freehub bodies. The Shimano freehub spline is the most common design out there, used on Shimano brand and many non-Shimano hubs. You're likely using this cog to convert your current wheel to single speed. The footprint of the cogs (where they fit onto the cassette body) is wider than most single speed cogs so they don't dig into the cassette body and get sloppy.


  • Tooth shape and height are ideal for single speed drivetrains
  • 9 speed drivetrain spaced
  • Compatible with all 6, 7, 8 and 9-speed chains
  • $26.00
    Sale Price
    Reg Price $29.99


    No reviews. Be the first. Write Review