WELL! BHD 451. Sorry, didn't realize you were so sensitive and didn't mean to start a pissing match, but,since you asked, i ride a highly modded 2011 yz450f. Yup thats right. It has different tires, new chain and sprockets, and since all the stock 450's come sprung for a 160-180 lb rider and i'm 6'2 210, i went with factory connection springs to carry my fat ass around. Oh ya, I have a non oem graphics kit as well and red wheel spacers. Have a nice ride. Mate, that must have cost you a fortune. You a factory rider ?