I understand riding in muddy conditions will wear out components especially brake pads.. But seeing as how i ride mainly deep water not mud and i have 81 miles i repeat 81 miles on my new machine i feel that the rear pads being metal on metal already is a bit ridiculous. Anybody else have a problem with this ? my gncc trx450r will go months and months if not a whole season on one set of pads and i uauslly race in nastier conditions then i ride this xmr so what gives ? Also sense ive owned the bike if riding at a decent speed on mild to rough trails i have a clunk in the rear half of the bike. ive tryed to watch and shake it jump on it ect to find it to no avail. any thoughts ?