Single speed cogs for bicycles

Anodized Kick Ass Cogs

$65.00

At a full quarter inch wide (6.35mm) at the splines, Kick-Ass-Cogs simply will not damage your HG free hub body the way a narrower cog can. Made of high strength 7075-T6 alloy (Stronger and harder than most common steels), Kick-Ass-Cogs are precision machined insuring perfect axial and radial alignment that compliments the superior chain lines that cassette style hubs allow.

The specially engineered tooth profile on Kick-Ass-Cogs improves both cog and chain life while minimizing drive train friction. With a Kick-Ass-Cog on your bike, you can expect a smooth, quiet drivetrain for miles to come. We do not recommend ACS Crossfire or SRAM PC1 chains as they accelerate the wear on the cog. SRAM PC7X and 8, 9, 11 and 12 speed geared chains have shown no issue.

These cogs have NOT been tested to be used on e-bikes. Cogs used on e-bikes are not covered under warranty. For singlespeed use only.

Like all EndlessBikeCo. Products, Color Anodized Kick-Ass-Cogs are made right here in Western North Carolina; not in some faceless factory on the other side of the planet.

 

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Description

Please note that not all freehub bodies are created equally (outside diameter that is). Depending on your particular hub choice, you may have to modify your Kick-Ass-Cog however with this modification they will fit on all Shimano HG style (currently not microspline compatible) freehub bodies. I like my cogs to fit tight so there is only smooth in your drive train with no damage to that expensive freehub body.  Not sure what I mean? Email me shanna@endlessbikes.com

As of April 15, 2026 my anodizer is discontinuing Blue, Lime Green, Pink, and Turquoise. Once the parts in these colors are sold out, they will not be restocked and will be removed from this page. I’ll miss them and I know some of y’all will as well. Thank you for understanding.

Please do not return product without an RA number. All returned orders will incur a 15% restocking fee.

 

Additional information

Cog Size

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