What brand/type of sprockets/chains do you guys run? Most of our riding of late at least is in mud,sand and lot wet trail riding.Original chain and sprockets have lasted 3,000 K's.Looking at renthal sprockets and D.I.D X-ring chain? Also what gearing? 14/50 now, may change to 15/51or52. Riding varies from open fire trails to tight trails and big hill climbs so looking for a gearing somewhere mid range.