Join Date: Oct 2011
Location: Somewhere. Wherever.
I have .8 miles of unmaintained dirt road to get to the pavement. Some days I do the round trip, 1.6 miles, 3 or 4 times. This since October 2011. I took no actions to spare it on the dirt. I inspected it from time to time, and I would hose the visible part sometimes when washing.
I changed my belt about 2 months ago. No problem. If you get a stone in there you'll damage your belt, but I don't think that is easy to do unless you're fishtailing and spinning the wheel.