I recently put 12v more of lithium on my bike. I now have 48v of lithium and my bike only goes about 3 mph faster from what I've seen so far. only had it on there 2 days, though. The wind yesterday was 13 mph. Today it was 14 mph. The highest I've had my bike up to on 36v was 29 mph. That was on a really good day. So far, the past two days, I've had it up to 33 mph on 48v. It seems the past two days have been pretty windy, though. Isn't 13 mph considered pretty windy? The reason I ask is because I have a 5303 hub motor and supposedly, it's supposed to be able to go 35 mph at 48v so I wonder if it's the weight of my bike, the tires, or the wind that's keeping from going faster. It almost seems the extra 12v is a waste so far. Maybe I should take it right now with 36v to see the real difference. I'm just a little disappointed right now.
I weigh about 270 lbs right now. The metal box probably weighs about 7 lbs. The batteries weigh about 26 lbs. I got crappy tires on it. I'm working on losing weight.