On a 07 Wr450, I'm just being lazy, and wanted to know if anyone has. I just put a stabilizer, and bigger gas tank, and new graphics on the bike and had a hassle with the shrouds not fitting at all! and had to buy oem new ones from Yamaha. The Acerbies wouldn't fit for some reason. btw, I have the new Acerbies 06 08 YZ shouds if anyone wants them, I have gave the bottom of the shrouds a nip with tin snips trying to make them fit. There free if any one can use them.