Another topic ... that is a BIT of a tangent, but not REALLY
I am planning to use the Electric Motor Module in my side by side WIKISPEED Quad.
But the motor should still run in the range 2000 - 3500 rpm, so that it cools properly ... so second or third gear is not really appropriate.
First gear! 14.75:1 gear reduction. 3500 rpm input to the transaxle will generate 237 rpm output.
From EV calc, these tires (which are likely larger than quad tires) give 902 rev/mile = 5.8 feet or 70 inches or 178.4 cm per rev. 237 rpm gives a distance of 42285 cm per minute. 422.8 meters. * 60 minutes is 25.37 km per hour or just under 16 mph. That's good enough. And I can recycle the tires that I was going to use on my SalvageS10 project (that's on the shelf
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Using the redline of 5500 rpm, you get 40 km per hour or 25 mph. That's good enough for a side by side quad!
And dropping down to 2000 rpm, not as a minimum but as a minimum for cruising ... gives 14 kph or just under 10 mph. Faster than walking, but not running.
It will have PLENTY of torque on the low end with a DC motor and 14.75 to 1 gearing. The plan is to use a second motor and transmission at the front of the vehicle, to give part time 4 wd. The controller on the front unit will have a second output contactor, to connect to 'power take-off' or PTO. Come to think of it, the same is true for the rear unit as well. The DC or AC motor will be part of the appliance to be driven - roto-tiller, snowblower, hydraulic pump (which has many uses) ... perhaps even a three-point hitch! I've ALWAYS wanted to have a 3 point hitch!