Originally Posted by
Crankycrank
One of the biggest advantages to all this is that people with arm and hand disabilities are open to a whole new world of options and I'll bet it would be easy to covert the buttons for biting with the riders teeth to shift and maybe develope electronic braking for riders lacking total arm use. And yes. there are special trikes that have foot controlled steering.
I have very weak thumbs as result of repeated work injuries, thus found it difficult to activate the thumb shifters on my mt. bikes. I then converted one to a Di2 system, the other to a SRAM AXS system. They work great. I cannot however, easily activate the thumb buttons on the top of the Di2 road shifters, the buttons are too stiff.