Originally Posted by JoshBMW
You need to move the entire grip assy back (to the center line of the bike).
The grips expand slightly when heated and are rubbing, let me guess, on your throttle lock?
Loosen the grip assy, and move it back on the bar 1/16 or less of an inch. That will give the grip room to expands when hot and not rub.
I'm not sure what you mean by throttle lock? Everything on the bars is standard, as per factory.
Never-the-less your suggestion sounds logical and I shall give it a go.