Hello - this is my first post on this wonderful forum.
I live in Asia and I recently got a 24v 250w kit with a 26 inch rim (front hub, brushless). I paired it with a LiFePo4 battery (24v10Ah). The setup is working great. I get a decent power assist and a good balance between effort and ease. The 10Ah battery has sufficient range for my needs as well.
However, the top speed without pedaling is only about 22km/h. If I pick the wheel off the ground, my cycle meter shows the motor at a free spinning speed of 25km/h. This means that if I pedal faster than 25km/h, I get zero assist from the motor. Before I upgrade to ebike, I routinely pedaled as fast as 30km/h (with effort, of course).
My questions are:
1. For a 26inch wheel, what motor/battery combinations would allow me to get a top speed of 30km/h+?
I understand more watts=more speed, but is there any way to calculate this so I can know what to expect before I buy?
2. Alternately, is this an arbitrary limitation inside the controller? Is there a controller hack I can do to raise the maximum speed? Would a different 24v controller give me a faster top RPM?
3. Are there any front hub motors out there that work at 24v that will give me the RPMs I need to get power assist even up to 30km/h?
Thanks in advance!