I have an 11 450f, it has about 67 hours on it. Most of that being on the snow with a timbersled ountain horse kit, and the rest on mostly tight single track woods riding. I am wanting to go through the bike and make sure everything is in good shape for the up coming season. It gets rugular oil changes, and a clean airfilter. I need some suggestions on what maintinence you would do to the bike for piece of mind. Thanks!