[GO-RIDE.com]

Concensus on RCM is that Mamba Max ESC, 8L motor, and 3S seems to be the sweet spot for the CRT.5. That motor and battery combo geared to only 33mph seems to be well undergeared. If you are driving on a tight track it will be great, but you can easily gear up or run 2.2 truck tires and increase your top speed without much of a heat issue.

My CRT.5 runs a Novak GTB esc, Novak 6.5 (6400kv) motor, and 4800 2S batts. I don't have any heat issues at all and that's geared for 40+mph (46/12 or 13) with 2.2 truck tires. I run a fan on the esc (probably doesn't need it) and no heatsink on the motor. IMO the aluminum motor mount and chassis act as a great heatsink for the motor.