I'm considering buying a '07 or '08 YZ450 and thought I'd ask a few questions about the setup you guys do. First off I'm a long time European bike rider - Maicos, then KTM 2 stroke and RFS, I'm 6'7" 220 lbs. and old guy of intermediate skill level and bad knees. Ergos is a concern to me due to my height, just like I don't fit in most newer cars (especially hondas), I mostly have to ride what fits and then add seat height and/or lower pegs to make it more suitable for me. The adjustable bar positions on the KTMs are a nice touch for me. Will be trail riding in the mountains and desert here - like the lighter weight of MX bikes over that of the WR type bikes. What type of maintanence schedule is required for the YZs? Any tips or advice would be appreciated, thanks!