that was because your a light rider and probably geared good..When it was on my bike it pulled all the way to 30mph. On a flat road. Going uphill, maybe 20 or so. Going down I wouldn't push it past 31-32. This motor has to last a bit. That was a 19.1:1 ratio on 24" wheels on a scwhinn delmar.
me im 325 lbs with a 60 tooth sproket i get tops 22 mph fast enough for this old timer any faster on a bike is nuts what if someone opened a car door going 50 mph id rather be at 20 and live lol