I had the same thing when riding a bicycle. I'm not sure the ISOs are to blame. It could just be a physical anomaly.After around 20 miles my two outside fingers tingle . Can I adjust the vernier isos to cure that ?
Which fingers - left or right... or both?After around 20 miles my two outside fingers tingle . Can I adjust the vernier isos to cure that ?
Thumb and index finger would be carpel tunnel (in the wrist). Ring and little finger would be cubital tunnel (in the elbow). I have cubital tunnel in my right hand and those 2 outer fingers are numb.I had a major problem with this , turned out to be a carpel tunnel problem .
What sort of throttle lock are you using?Sounds like carpal / cubital tunnel - I have a similar issue. I use a Throttle Rocker on the right grip, as well as a throttle lock, so that I can take my hand off the grip periodically to rest it while riding.
Just a generic friction lock with an over-center locking lever, very similar to this one:What sort of throttle lock are you using?
I started with the Throttle Rocker device, and it was a definite improvement, but I would still get some discomfort after an hour or so. Putting the lock on solved my issues completely (short of surgery - lol)OOPS - just discovered that this is the same thing that Derek mentioned in post 8. I didn't recognize the term "Throttle Rocker."
Get an X-Ray of your thoracic and cervical spine, especially T1, C7-C5. Budging disks can cause it, but usually only one side. I had that for a long time - traction cured and it wasn't noticeable until I kept my arm in the same basic position for a while. Fast forward 10 years and the arthritis is causing it in both hands as my disks are basically gone (I'm 1" shorter). Today I have minor numbness in the right hand two outside fingers all the time, and in both hands when riding or otherwise not moving my arms much.After around 20 miles my two outside fingers tingle . Can I adjust the vernier isos to cure that ?
Brand name CrampBuster here, I have them on both bikes I own.Yeah that device works well and I have found even simpler devices (link below) help considerably. They don't hold the throttle in position but they allow you to release the pressure in your fingers when you feel the need, using the heel of your hand to maintain or increase the throttle setting A friend gave me one. I had never heard of it and, frankly, didn't think it would work worth a darn but I tried it and it's been on the bike for three years now!
Amazon product ASIN B001L9KI56
OOPS - just discovered this is the same type of device that Derek mentioned in post 8. I didn't recognize the term "Throttle Rocker."