[DampRobot]

Originally Posted by MICHAELABICK

As far as I know many west coast teams drill a hole into the drive shaft, push the encoder into the hole, and then zip tie the wire to the belly pan. No mount is needed.

It's how we did it for our offseason robot. It's great. The only word of caution is to make sure you've got a good fit between the hole and the encoder shaft. If its too loose, it will easily fall out. If its too tight, you'll bend the shaft when trying to insert it. We marred up the encoder shafts using vise grips to make it easier to get a nice press fit.