Battery Vehicle Society

Hey all.. was wondering how to decide which motor to use to replace an existing 249cc motor in a motocross bike? the max power at the moment is 42hp but i've read that the electric motor doesn't need anywhere near that amount... which left me confused because they mass hasn't changed! it still has t...

Hi all, new to the forum, am a student at Cov Uni doing a dissertation on electric motorsport and was just looking for some info on the basics of batteries really! I've been reading about Lithium ions all over the place, I take it these are the industry standard? also heard about the high prices too...