Thumb pain

[rij73]

I'll share pictures of the crazy flat bar setup that I used for about a year with no pain. It was really crazy. Ultimately, the best solution was to go to a road bike but without setting it too low. I couldn't put too much weight on my hands.

[Thise1936]

I had a similar thumb ache when I bought a new bicycle. I wasn't holding the handle properly due to some height issues. I then adjusted the saddle and then the pain slowly faded away.