Fernmoss said:
Is driving the left side of the rear wheel on a tadpole with the motor possible? A sprocket can be mounted directly to the disc holes but the chain would naturally run when moving.
Certainly, as long as your motor output lines up correctly with where the sprocket ends up, and you either don't need a disc rotor back there, or you use a top-hat adapter
https://www.google.com/search?q=top-hat+adapter+sprocket+rotor&tbm=isch
to give you both, and the chain and sprocket (and rotor, if any) will clear your stays and frame along the entire path.
You may need to build the motor mount with slotted holes to adjust the chain tension, or include a chain tensioner along the pull-side path.
Is there a way to mount a freewheel on the left side?
If you mean the left side of the rear wheel, on the disc rotor mounts, no off-the-shelf hardware exists for the purpose, but you can make something with a little DIY and some existing hardware. What you use will depend on what kind of freewheel you want to use, and that depends on the purpose, system, and power/torque you want to use thru it.
For such leftside drives, it's much more common to put the freewheel on the motor output itself, and let the chain keep moving all the time, putting a guard on it if necessary for however much of it's length could cause TCM sequel issues.
The motor is equipped with reduction gears, so the freewheel can be smaller.
What's the full system being used? More details is better for helping us help you find the best solution.
