Symptoms of wrong cam installation

I think you're on the right track, too. Buddy screwed up the install. Especially if it's a helical cut geardrive, he probably pulled it a tooth (or more) off on the install. If it's a straight cut gear, he's got no excuses. Buy him a degree wheel for Christmas.
Milodons are straight cut. and an easy degree as you dont have to take the chain off, you just pull the cog off the hub, line up the cam and rotate it to another set of holes. 7 allen bolts.
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