Last year i wore out a P.D. chain and sprockets(non o-ring and steel sprockets) pretty quickly,about half of the riding season.( purchased from rocky mountain). I had to adjust the chain after every ride, due to stretching. I lubricated and cleaned the chain regularly.This year i will buy an x-ring chain and new sprockets. My question is does an x, or o-ring chain fit on the kdx without any modifications?