[LLogan]

70 mph is 102.667 fps.

It looks like you're using 8 inch mecanums. So... that's a rotational velocity of 154 rotations/sec, or 9240 rpm. That'd require a 0.6:1 reduction on CIMs. At best. Which means your robot wouldn't budge. And seeing as you're it looks like you're using the CIMple gearboxes or the Toughbox Nanos, I don't think your math is right...

Looks like a nice drivetrain though.