Trike motor

[Posselosse]

I'm constructing a trike with both pedals and an electric motor, but I can't seem to find a good motor. At a total weight of 90 kg (200 lbs) its max speed (using only the motor, on a flat road) will be 25 km/h (15.5 mph). I have calculated that I need 100 W for this...

I will need to gear it down to build up the torque, so I guess a motor with build in gears would be best, but it's not a demand.

Also, I would love to hear your comments on my construction. I have two builds. One with a differential and one without. Would you construct it in any other way?

 

[safe]

If you live in the US you should be able to use 750 watts "rated" as output motors without any problems. In a smaller percentage of states you can get classified as a moped and go up to 2250 watts. For Canada it's 500 watts, Australia 200 watts and Europe 250 watts. Check your local laws to get the specifics.

You might follow AussieJesters thread. He (and I) have used Unite motors for a long time and are both upgrading to other things now, but the older stuff isn't bad. It's cheap anyway... and it's a simple bolt on.

http://tncscooters.com/partsdb.php?type=ES

Cyclone also makes a motor that could be easy to use. (much more expensive)

http://www.cyclone-usa.com/store.php?crn=200

 

[johnrobholmes]

If you are in the us, you can get some cheap suplus currie motors from allelectronics. It would be just right for your plans.