At a full quarter inch wide (6.35mm) at the splines, Kick-Ass-Cogs simply will not damage your 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.

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