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[skadamo]

Mark Gelbien and his company Enertrac Corporation believes the motor belongs in the wheel itself. Mark has developed a turn key electric motorcycle solution called the Enertrac Hub Motor. The MHM-602 model is a 3rd generation version of the motor that will fit any swing arm with a minimum 7.5 inch gap.

http://www.plugbike.com/2009/07/31/enertrac-corporation-electric-hub-motor/

[frodus]

I took the Lifan with hubmotor out for a spin, it was nice.... very peppy and plenty of acceleration.

[markcycle]

Mark from EnerTrac here

Wanted to post that the 600 series Motorcycle Hub motor is in stock (limited quantities).

For a limited time, If you send us your swingarm we will fit the 600 series motor to it for free (labor only) and send it back ready to go. We can also offer swingarm modifications as needed.

For more info

www.doingitall.net/EnerTrac

Mark

[guity]

I have this dream of using two hub motors to make a 2-wheel drive out of my 1984 xl350r.  I would want to have two separate battery systems, a 36-volt clump of batteries toward the front end to power that wheel and a 72-volt clump of batteries toward the back end for the rear wheel.  For some reason I am thinking it would be cool to have two throttles -- the left throttle would control the front wheel, and the right throttle would control the back wheel.  The back wheel would be totally geared toward torque and acceleration, while the front wheel would be geared toward top speed...Is this dream completely unfeasible?  Can one of those hub motors be used in a front wheel situation or can they only be used in a rear-wheel-on-a-swing-arm situation?

[frodus]

if you did use a front motor, I'd say do them both off one pack with the same voltage......

because under heavy braking, most of the "force" would be from the front wheel, potentially better regen results. If you turn regen on too hard on the rear wheel, it might lock up, since its limited traction compared to the front.

[guity]

Hi frodus -- I'm pretty inexperienced at this -- would there be a controller that would be capable of splitting up the power coming from, say, one big 108 volt set of batteries, so that a desired proportion of the power went to the front motor and the rest went to the back motor?

[frodus]

you need 2 controllers for 2 BLDC motors unless they're mechanically coupled EXACTLY. You can then just tune each controller. Just set one to have different current limits than the other You can even change the throttle position on the kelly so that one starts at 10%, the other at 20% or so.

[skadamo]

Found the site of a guy converting a Honda Interceptor VF500 to electric and using the Enertrac Hub...


http://electriceptor.wordpress.com/

Electriceptor #7: The MH602 Hub Motor in Testing.