I have both a left knee replacement, and a right hip replacement. I have a 'Cateye' 'puter on my Rover. In the paperwork it talked about a set distance that must not be exceeded. On my Rover TT was kind enough to add a sensor mount by the right front wheel, and the 'puter itself is mounted on a ACC mount right above the pedals.

With the above setup, I have not had any issues at all in some 150+ miles.

I hope this helps?