[Christ]

There's something I didn't think about... if there is no power to the electric motor, does it matter how fast it spins?

Could I put a relay switch on the VSS so that when the driveshaft speed gets too fast, it cuts all power to the motor? Would that work, even though the driveshaft will definitely go faster than 1320 RPM...

I dunno where I can find a 10 HP electric that has dual shaft and revs to like 3-4k or more?

I know that rear discs drag a bit more, but there are fixes for that, like return springs, etc, which allow them to open up just further than they normally would, without really affecting pedal travel.

Thanks for the tips and all so far guys! Keep it coming!