Not sure if this should be in the general forum or tech board, but here it is.
After riding for a while at just about any speed, my right hand gets very buzzy. All I have to do is let go of the right grip for about 30 seconds and it goes away. Tried different gloves and Bob (Attic Rat) installed new grips for me in March. I've tried lightening the grip and even use the palm knob that is on the new grip. Does not happen with my left hand. Anyone else have this experience?
Fazer, I've had the exact same (right hand only) problem a number of times over the years. And I have no carpel tunnel or other neropathy/injury of the hand or wrist either. Almost always at higher and longer sustained speeds, like at least an hour (more vibration/revs). On pretty bone stock Valks, both with ISO grips, with throttle locks and bosses. It was like the hand going to sleep, and tingling (eventually painful).
Never the left hand, only the right. I'd get relief from the lock (with the hand barely touching the grip), or slide my hand down and palm the boss and raise my hand off the grip.
I think it is the required looseness of the throttle sleeve under the grip, picking up vibration and transferring it to the hand (no sleeve on the left, no symptoms, ever). I could never tell if the ISOs made it worse, though the rubbers should be a dampner, but maybe the way they sit down in the grips, they transfer the sleeve vibration worse than stock or solid grips (I dunno, I like them and never changed them). I'm not talking Harley vibration, I'm talking tuning fork type vibration.
It hasn't happened to me in awhile but I haven't been putting in any hours-long freeway rides either. I did have it happen at lower speeds a few times, but rarely.
I had some bike gloves that had an air pump on them (like some tennis shoes) and pumping up that glove helped a lot (but they wore out, and I never found them again).
I can't remember it happening in my big heavy insulated winter gauntlets, but I don't do all that much cold riding anymore (and none for speed and distance).
They sell gel padded gloves.
This is not the first time this issue has come up. The majority never have the problem, but enough guys have without apparent injury or neropathy that it's no individual fluke.
One more thing; I glue my ISOs on with clear RTV sealant (so I have time to position them before grip glue hardens, in 3 seconds). It starts to come loose about once a year (not completely loose, just begins to slowly turn on the handlebar). So I yank it off and glue it again.... but I have been really filling the grip up with RTV (much more than on the bar), so it spooges out the ISO rubbers when you slide it on, and I think this has cut down on vibration for me.