Decided to remove the horrible stock grips from my 1993 k75 RT and install a set of ProGrip 785 foam grips. Turned out it was more difficult than I expected. My K75 has heated grips, and it was pretty straight-forward cutting off the old grips - I slid a carpet hook knife
http://www.irwin.com/tools/utility-knives-blades/linoleum-knife under the old grips. Took all of about a minute per side to slice them off. I was left with this:

...and this on the throttle side :mbird

:yow No wonder the throttle side heated grip wasn't working! If anyone has a clue how to rectify this, I'd be interested in a reply. I can still see the cut wires still down the handlebar guts, but have no idea how they're routed, or how to access them...
Anyway, these heated elements seem to be covered with some sort of heavy paper, and, of course, are slightly larger diameter than bare metal on the clutch side, and bare throttle tube on the other. I was planning to use soapy water to slide them on. Well, that's a LOT easier said than done! After a lot of shoving, though, eventually the throttle side went on. The clutch side, though, was a really tough gig with the additional thickness and non-slippery surface of the heated element. I took to using a set of multi-grips to help me with that one. After an hour's struggle, though, they finally went on.


I managed to install the end cap supplied on the throttle side, but the clutch side simply refused to co-operate. The additional thickness made it impossible.
Anyway, job done, and back in the bicycle race for me.
Cheers,
Max in Melbourne, Australia