![]() Seconding what these posters have already said. ![]() That was 10 years ago, and since then lithium (which was already better by a wide margin) increased its energy and power density by at least double, and cost have decreased by half. That's how I started with electrics, a moto conversion using lead batteries, and it was a heavy, slow, pig of a 2 wheeler, and every single ebike I've built since outperformed it by a wide margin. Third, don't waste time with lead acid batteries. If so, then that will get you what you want. ![]() Second, find out if Zero is still selling its 54hp high efficiency drive system. The 80ish peak efficiency of common DC motors will cause it to build up heat and quickly lose power and reliability.įirst, I'd suggest starting with something much lighter, because unless you'll settle for limited range, the battery pack will quickly turn it into a significantly heavier bike than it is now. The problem is the relatively low efficiency compared to modern brushless motors. So is there a good choice for a beastly, oversized motor that can provide a wildly excessive amount of torque?Ī common DC forklift motor with the right gearing and voltage at the high end of its limits could give you what you want.for a few miles. Me and the bike are both big, heavy beasts and i'll need to be able to power up steep offroad stuff, like near vert hillclimbs, launching double sets, and such. So, what's the deal with forklift motors for bikes? Is there a motor out there that can do this kind of thing? I want scary low end power on it, the kind of power where a bit too much throttle will flip the bike. Right now redline is like 110mph but i don't really need much more than 60mph or so out of it. The stock motor puts out something like 40ftlb of torque but i want more, and less top end as the bike is already too fast. Now if i'm going to convert it, i'll need a big, high torque motor as it's a big, heavy bike, and i need a ton of torque to make it feel alive. Hey all, i'm thinking of electrifying my KLR650, i haven't ridden it in years and i just can't bring myself to feed it with fossil fuels anymore, so i've decided to look into making it electric. ![]()
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