CV transmission

[macka]

Seeing its a slow day here at the office, I was thinking about how to mount a CV tranny on an e motorcycle to see if I can get more range and speed out of it. I was thinking of using a snow machine setup but they are bulky for a bike, and I was thinking maybe a transverse mount and a shaft dive rear end. I'm seeing a lot of older shaft drive bikes with blown motors around this area.

[Locutus]

Unlike Internal Combustion Engines (ICE), electric motors have no need for a transmission or clutch, especially at the speeds we're talking about for electrically assisted bicycles and tricycles. And you get maximum torque right off the line, unlike the powerband of an ICE which maximizes its torque typically between 3500 and 5000 RPM. Installing a transmission in the electric power train of an electrically assisted bike or trike would be an exercise in redundancy and only diminish efficency, and therefore, range and power. Not worth the effort and cost. You'd be better off, IMHO, looking into a differential for a trike, or a hub motor for your front wheel.

[macka]

I'd like to get faster speeds on lower RPMs which would mean less draw on the power and better speeds.

[Locutus]

I'd like to get faster speeds on lower RPMs which would mean less draw on the power and better speeds.

If you REALLY want a CVT, and compact size, why not try a CVT from a honda or Vespa type scooter?

[macka]

If you REALLY want a CVT, and compact size, why not try a CVT from a honda or Vespa type scooter?

I have a polaris star CVT and its already free and compact. I was getting speeds up to 100km/h on it at 4000-5000 rpm, I'm looking to see if it would better the range and speed of an e motorcycle through the diameter change when it spins.