[What's_nitro?]

Originally Posted by BL_RV0

How I'd love that motor.
It spends at 6k rpm though, so I'd need this too.
http://www.robotmarketplace.com/products/TW-TWM3M.html
And that I most definitely can't afford!

3HP @ 6K is too fast???!!??

You could go the cheap route and use a couple 750 sized boat motors. A significant gear reduction would be necessary, but I'm pretty sure planetary gear boxes are available.

Have you seen these? ScooterSupport.com They have 36/48V 1000W models; 4" diameter, 6" long, 11 lbs. , ~$160.