HappyHighwayman
It's all in the reflexes
Are there any legal or regulatory reasons one can't make such a modification?
Thank you so much for your very kind offer.I will make this happen if it will get you riding again. All inclusive. I will come get the bike, I will install it, and I will deliver the bike back to you. Just say the word.
I'd also be willing to modify an ATV style thumb throttle if need be.
Hell, the design isn't even that complex. I could probably machine up something that would work, customized to your bike, your comfortable thumb range of motion, etc.
Same here, I'd expect a thumb rear brake control to be even better than the foot.
EBD: I'm not up on what kind of rehab you've been recommended or are doing, but years back I had issues with scar tissue on some tendons & my chiropractor did some (excruciating) manual manipulation of the tendon to break up the scar tissue. I had to do similar manipulation daily for almost a month for the pain level to diminish & the range of motion to come back, but it worked.
My wife had a trigger pinkie when she was preggers with both kids, she had surgery the first time & did the manual manipulation the 2nd time. Supplemented the manipulation with Chinese Herbs & got the trigger to go away.
Getting old sucks. You gotta be brave to pull it off.
Thanks guys; right now I've got a lot of things going on. There's a get well EBD thread elsewhere on BARF, & I been mostly posting there as don't want to get 2 threads going on same thing.Could something along the designs of a cramp buster help alleviate the problems?
Other idea - a throttle lever, rather than a thumb throttle. Use an adjustable spring load to change the pull vs. the return strength - similar setup to what stunters use for a handbrake, except you're actuating the throttle. I don't know if that would be problematic with the trigger finger - if there's a range of motion that's problematic, that would be something we could design around.
If typing is hard, send me a PM with your number and I'll give you a ring this weekend and we can see if we can work something out
I can lend a hand with the maintenance too, if need be.

I didn't find it useful. The again I'm not you.
EBD: I'm not up on what kind of rehab you've been recommended or are doing, but years back I had issues with scar tissue on some tendons & my chiropractor did some (excruciating) manual manipulation of the tendon to break up the scar tissue. I had to do similar manipulation daily for almost a month for the pain level to diminish & the range of motion to come back, but it worked.
My wife had a trigger pinkie when she was preggers with both kids, she had surgery the first time & did the manual manipulation the 2nd time. Supplemented the manipulation with Chinese Herbs & got the trigger to go away.

Having grown up with quads, jet skis, and sleds I can tell you on a long ride your thumb will be throbbing with pain so great that you can't take your mind off it. Even in my peak physical state, a full day on a sled and my hand would hurt for two days. For some reason, I could never build a muscle, or became accustomed in any way that would help with that pain.
I'm not saying you couldn't get used to it, but I sure as hell never did.