With standard tires, and as a 5'11'', 185 lb rider, I was able to go 47 mph on a dry, smooth dirt road. The quad is a lt 160 has all stock carb and exhaust, and is a 1989. Standard 11x39 front to back sprockets.
it will go about 140-160 mph.
they usually top out at about 65 mph
i have a suzuki LT 230 and it will go around 60-70 with the .30 over bore kit so stock around 55
i have one and ya its 160
top speed of suzuki biplane
160
Suzuki Hayabusa
54 or 59
120-160
About 160 mph
160
160