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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.
- Item #EDB0002
- Q & A
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.
I've used them with no issues on both 9 & 10 speed chains if that helps at all.