Thanks for responding.
Bad luck I guess, although I read in one of your posts you mentioned "decent long hills".
I'm getting ready to upgrade from the stock 17 Amp controller to a true 25 Amp controller, so maybe I should use my CA to dial it back to 20 Amps.
At any rate, did you want to stay with a frt. motor?
Members here have used the larger geared motors on the frt.[Mac, BPM, etc], but they have stayed at 36 Volts.
I'm thinking a larger motor than a mini on 48 Volts means you will have to go to a rear mount.
The MP3 seems like overkill.
The least expensive and easiest route might be the MXUS DD[9C clone]from Cell_man. He would probably sell you a motor/wheel only and you could use the rest of your Amped kit that you have. I think the connectors might even match up.
That motor on 48V/22A would get you 25 to 26 mph and decent climbing.
If you used two torque arms, you probably could frt. mount that. Dogman has a 9C on the frt. They are known to be durable.http://www.emissions-free.com/catalog/i14.html