Bid Product XL brushless motor

[E-Revonut]

5.5mm will get the job done, 4mm would probablly be fine. I would make sure you gear the motor accordingly. In the other thread, the one that was getting hot was being run on 5s A123 and geared 62/25 which assuming the truck has stock diffs is geared for almost 50MPH, I wouldn't shoot for more than 40 and check temps then