[Fiddybux]

No Chris....this all sort of makes sense to me.

In the tuning section of the manual it warns about making sure the belt runs true and straight in all the pulleys and tells you how to do it...but this is only for reasons related to "efficiency".

I guess though it is how it started, a little chaffing on the edges of the belt soon turns into a big old ripped belt at very high RPM that you get in this car. I mean, with the Losi pulley, the internal ratio is a stupidly small 1.68:1 I think!!!

As to how the pulley got rounded is a little beyond me at present...maybe heat induced through running fast with a tight belt?

In any case, when I rebuild I will definitely get everything lined up in the middle to avoid contact with the edges as much as possible....plus I'll get a few belts and pulleys for spares just in case!

Wish I could be certain how this all happened though.