Quote:
Originally Posted by hamsterpower
Are there motors available with that would allow me the low end torque and high speed without the use of a gearbox/transmission? Absolutely. Electric motors are ideal for huge low speed torque but some also can attain very high speed with enough voltage.
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It is a function of the size of the motor, so yes, but it is gonna be heavy IF YOU HAVE NO GEARS!!!
The tesla roadster has about 8.25:1 gear ratio IIRC. But you are not going to find a motor that can drive a single speed gearbox AND lift a heavy homebuilt thingamabob offroad rock climbing AND push it down the hiway. Multiple gear ratio choices certainly would be a good call there.
electric motors arent magical. And adding volts adds weight for a given torque, so less climbing.