Roughly 16 engine hours on the bike (93 non-oxy fuel), oil&filter change every 2 engine hours. This bike has never been on a track, Single track trails only. Skid plate installed, pro circuit Ti-5 exhaust (head back), fork seals replaced at 12 engine hours. I have the stock exhaust from the head back & an extra pro circuit muffler, new graphics and seat cover for when the current ones wear out.