I am not sure if this was answered already in this forum but I was wondering if you can use pneumatic tubing without using pneumatics on the robot and sti have the max amount of motors

As per <R12>

Unofficial reply to

There’s no rule stopping you from doing so that I’m aware of, but if you’re intending to use the wire and/or pneumatic tubing as a sort of cable, an unlimited amount of 1/8’’ braided nylon rope might be a better option

As always, if you have a specific question for which you wish an official answer about the VRC Game, you should post it on Official Q&A
VRC Official Q&A