Crazy Question - Best way to remove residual hand grip material?

wd-40 works good then follow up with carb cleaneror if your really lucky to have access to some contact cleaner use it!

I bought a set of ODI grips.. 18 bucks from rockymountainatv.com..

They come mounted on a throttle tube on that side, and a plastic tube with lock rings on the left side.

No more glue, safety wire, hair spray or any of that junk.

And no twisting at all. Plus, when it's time for new grips, you can change them out in a few minutes with basic tools.. No cutting them off.

Hey, for 18 bucks, you really can't beat them. Plus, the grips themselves are pretty good.