Originally Posted by evolutioneng
okay im going to make a prototype mini bike elctric.what battery cell(s) does someone recommend. which electric motor does someone recommend. 300 weight person. im going to use a centrifugal clutch for the trans. i have a battery plus store where close by so i believe ill be getting it from their if the price is right .
Motorcycles are notoriously NON aerodynamic. Nearly 100% of your energy at 70mph will be to overcome extreme wind drag.
If you want your bike to reach 70mph regardless of your batteries, motor, etc you only need to build up your fiberglass skills and make a fairing.
After you make the fairing nearly anything 3hp or better will move you to 70mph.