Odd wear on drive belt

[mxz600]

I had a new drive belt put on due to stone damage. As you can see in the picture the belt also has some odd wear on the inside of the teeth.

I didn't think much of it at the time, just thought it was from the stone, thinking it might have been lodged in the sprocket and caused the damage. Well now I see my new belt is showing this same wear pattern.

The tech that worked on the Spyder said the sprockets looked good when he replaced the belt. I told him to pay special attention to the sprockets because if there was any sign of a problem I wanted them replaced as I turned this in on a comp claim and it wouldn't have cost me any extra, no matter the cost.

What could be causing this?

 

[NancysToy]

I'd look real hard for a stone lodged in a sprocket tooth. From the looks of things, it could be pretty small, and easily missed. Run a screwdriver or some other hard object up each tooth, and feel for any rough spots. Could be just a slightly mangled sprocket tooth, too. I suspect your tech wasn't as careful as he could have been.

 

[docdoru]

What happened with the rule "replace back sprocket+ belt"?