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  • Endless Bike Kick Ass Cog
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Endless BikeKick Ass Cog

Item # EDB0002

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  • Silver, 16T ($50.00)
  • Silver, 17T ($50.00)
  • Silver, 18T ($50.00)
  • Silver, 19T ($50.00)
  • Silver, 20T ($50.00)
  • Silver, 22T ($50.00)
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Item # EDB0002

Many single speed cogs will take a toll on freehub bodies over time. Their narrow nature paired with a whole lotta torque makes for trouble. Our friends in North Carolina developed a brilliant solution -- the Endless Bike Kick-Ass Cog. A full quarter inch wide (6.35mm) at the splines, the Kick-Ass Cog simply will not damage your free hub body the way a narrower cog can. It's crafted from high strength 7075-T6 alloy (Stronger and harder than most common steels), right here in the U-S-of-A.

Endless Bike 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. Because of this, you can expect a smooth, quiet drivetrain -- no more grittiness.

Tech SpecsWeight
Tech Specs
Cog Material
7075 T6 aluminum
Hub Type
Shimano or SRAM compatible
Recommended Use
single speeding

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

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Silver, 16T
Silver, 17T
Silver, 18T
Silver, 19T
Silver, 20T
Silver, 22T

Reviews & Community


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Does the Job

  • Familiarity: I've used it once or twice and have initial impressions

Finding a reliable, lightweight and cost effective rear cog can be tough. This one fits all three - thought a bit higher on price than desired. I suppose, however, that the 7075-T6 provides a serious sense of confidence that it'll stand up to tough climbs. In this case, I needed this gear to race Leadville and was completely happy with its performance. Never did it feel like it'd slip or compromise the hub with the torque I was putting on it.
Also, I run it with a 10 Speed chain.

chain size?

I've used them with no issues on both 9 & 10 speed chains if that helps at all.