I'm thinking about regeristing my 03WR450 and riding it to work a few times a week which is about 20 kms of highway. I have been told that WRs get to hot riding on the road and also the rear hub needs to be change to a different type as it transfers vibrations to the gearbox. I cant see a difference between riding down a highway and riding on gravel roads or in wide open country. I know of a few wrs which regularly see a Fair bit of highway use with no probs but as you know when it comes to your own bike you like to be a bit cautious. Any replies would be greatly appreciated.