I talked with a local dealer and he called tucker Rocky. They say you do need to change the Shrouds on the WR's . The two bikes are very close. I cant figure out why these manufatures dont make a WR specific sinse most guys that buy WR's are the trail riders and need the fuel compacity. I cant figure out why Yamaha doesnt dell the dikes with bigger tanks anyway. Why does Yamaha insist on making two similar bikes with different shrouds? If companies like IMS and CLARKE can make a tank that uses YZ shrouds than so should Yamaha when they design our WR tanks... I'm pissed! I don't how many shrouds I will replace on my 07' but on my 04' I was always ripping shrouds off - go to the shop and there would be 5 sets of YZ shrouds hanging there but apparently it did not make good sense to stock WR shrouds... I looked last night at the shop and there are YZ shrouds hanging up but not a set for WR... It's racism I tell ya!