Best power/size ratio for electric street bike

most of the time, lbs motor = lbs torque, HP has several factors (copper, what the motor RPM is wound for, brush size, cooling).....

For instant power, Series wound usually wins. Best power to weight is BLDC.



Don't look only at HP, look at size, you'll NEVER fit that AC50 in that bike, its an 8" motor, 12"+ long. Even if you could, you won't be able to fit high enough energy/power batteries in there to really have fun. The batteries will likely be the weakspot.

I'd suggest an AC15 or AC18 motor, and lifepo4 batteries.


Maybe start with a brushed motor like an Agni 95, its got a peak HP over 25hp, its light, high power to weight, easy to find a controller for, small.

lol oops i meant the ac 20

i like the agni motor but i feel tht a peak power of 25hp isnt quite high enough

would there be a way to have 2 agni 95r on the bike some how combining the power of both motors? i no ppl have done tht for cars ex white zombie but im not sure how they would

any links would be greatly apprieciated

Hi, I sent you a private message that might help you.
Mike
www.EV-propulsion.com

appleseed said:

lol oops i meant the ac 20

i like the agni motor but i feel tht a peak power of 25hp isnt quite high enough

would there be a way to have 2 agni 95r on the bike some how combining the power of both motors? i no ppl have done tht for cars ex white zombie but im not sure how they would

any links would be greatly apprieciated

Click to expand...

They've measured peaks between 35-40hp with higher voltage and the reinforced armature.

There are quite a few bikes that have dual agnis, look up "ttxgp" and "agni" on google. The Mavizen, Agni, Electricracebikes.com and Jozzer's bike have 2 motors on them.

i like dc motors but every website i find bout dual agnis just states tht the bike has them

it never says how they are set up: dual chains too? motors in series? parallel? how are they connected in sync? it looks like no can tell me how the 2 motors run as one