Very clean bike!!!! They sure are sweet. I bought one for resale and I nearly kept it and sold the Warrior! I liked it that much. Go to motosport.com and look into the ARTRAX rear tires. I got a pair for the rear of my ATC350X, and they were on sale, so I got them for almost a perfect $100.00. AND, they are 4 ply tires!!! BTW, TUSK makes a VERY nice set of extended rear wheel hubs for a little more then $100. I put a pair on my sister's 250ex and they really are sweet! The 450r fronts are a noice addition, and you can find some super, super, super good deals on used +2 & +3 arms on ebay. If you get it, you'll have made a super great deal. You simply cannot go wrong with the 400ex. Just a damn well made bike. Hope you get it~