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Originally Posted by BrianG
Of course! But only on point 1b, and therefore your conclusion. Yes, higher current draw = more voltage drop = less motor rpm, but at near top speeds, you won't have the huge currents you do when you start. So, I think motor RPM will be pretty darn close whether geared high or low, the taller gearing will just take longer to get there.
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I concur.
I also concur with posts #111 & #112- thats how it works out in my head.
When you gear up, there is less mechanical advantage from gearing, meaning when you slam on the brakes, the motor has to work that much harder to stop the truck on that blasted dime; if you gear down but travel at the same speed, the truck has the advantage of gearing to help it stop that muich quicker (kinda like a naturally induced drag brake). Thats what I observed many years ago in my old TXT-1 setup when farting around with the gear ratios- has interesting effects on the brakes gearing up way high with a weedy motor (hv4400)...