That's not always the case. My RC8Be runs cooler with a 2050 geared at 20/46 than it does with a 2050 geared at 18/46 or 19/46. Some of the old tenth scale motor rules are thrown out the window with these eight scale motors. For example, there's really not a trade-off between RPM and torque because the more gear you add, the more torque and RPM you'll get. In my opinion, with these motors it's all about finding that sweet spot where you're car is running cool and you've got enough power for the given track and conditions. For me, that's 19/46 with a 1900 on indoor tracks, 20/46 with a 1900 on small outdoor tracks, and 20/46 with a 2050 on large outdoor tracks...