A
i have a buddy who has a CMX and when he is going from powder to hard pack he will break belts, and it happens quite often, has anything like that happened with your belt drive kit?
Our belt drive kit is different from the CMX one. The C3 system is a bolt on kit, however the CMX requires much more modification, and is also priced much higher then ours.
Another major difference is our kit uses a backside idler. Therefore the belt has different pressure points and will not break in the same way. So to answer your question, going from powder to hard pack does not seem to be an issue for our kit. In fact, Cory Micku was the first to try our kit out, and has yet broken a belt.
If your buddy with the CMX is breaking belts often, something may be out of alignment. His belt tension may also be too tight. Just a few things for him to check.