what Chain size and tensioner to use for the drivetrain

[Cory]

Originally Posted by Otaku

This is true.

However, will it really exaggerate itself over the 3-9 days that I'm guessing most teams compete (that's 1-3 events)?

Not that I advocate not having a tension system. I still stand by sliding motor mounts.

We put hundreds of hours of drive time on our robots. Some teams clearly put a lot less on theirs.

A blanket statement that tensioners are unnecessary is never a good thing, imo.