So if you make your motor 10 pounds lighter you win? Heck, my backpack is 10 pounds. And a motor can only be 100% efficient, and they're at 97% now. Naw, I'll t

So if you make your motor 10 pounds lighter you win? Heck, my backpack is 10 pounds. And a motor can only be 100% efficient, and they're at 97% now. Naw, I'll take my non-slipring motors.