Sounds like you are on the same search I've been on for a few years. Unfortunately, really motorcycle like performance on an ebike is pretty hard to get, and then tends to melt your stuff. Put 3000+ watts into these motors and they do perform, but it takes high discharge rate batteries and a lot of motor temp monitoring. If you don't stop in time, pffft. I've had two motors that really did it, and fried both on fairly short rides, by climbing too steep a hill.
A 9 continent 6x10- 2810 winding motor is a not a bad climber at 48v 25 amps. Push it harder and it really gets nice, but I really really melted mine when I put 72v 40 amps to it, AND rode it hard up steep hills. The slow winding motors make less heat when turning slow, like grinding up hills. A 2807 9c motor should never be ridden at full throttle less than 15 mph up hills. Below that speed, your power makes heat instead of motion and you get really hot motors. I found the 6x10 on 1000 watts did climb steep trails, but still needed me to pedal on the stuff above 10% grade. On more moderate trails, it was a joy to ride trials style, going 15 mph on tricky sharp turning trails. But it just couldn't do the motorcycle and ATV trails. Only 1.25 hp after all. When I put 5 hp into it, then the smoke came out.
Break in the ping, by doing some very short rides followed by very long charges. Leave it on the charger overnight kind of stuff.
Then start saving up, because that ping is never going to last running a 40 amp controller. But it might last long enough to melt your motor pulling 2000 watts up steep hills.
