Hey BL, my buddy has a 450 kodiak, and thus far has been a good ride for him. I think he has right around a 1000 miles on it, without a hiccup. It will go just about anywhere my 660 Grizz will go, BUT, the difference is found once we get into the 'skag, and the thick mud. The extra power is noticable. BTW, we both run 26 inch mud terrain tires. We have hauled out three elk with our quads together, and his power to weight ratio is fine. Feel free to ask any more, I will help if I can.