
Originally Posted by
aicabsolut
My AC joint is ok, but I was getting a lot of impingement of tendons around there due to rotator cuff problems (which started as a generic diagnosis of frozen shoulder). I don't know if this will be enough for you, but taping the supraspinatus muscle with Kinesio tape is the only way I've been able to ride my bike--holding my arm in that position, putting weight on it to stand out of the saddle.
It was always a lot easier to ride a spin bike when it was the most painful, though I did have to sit up more often. Not sure if that's a strong enough fix for you, but it might help.