Answer by Honda motorcycles. Confidence votes 315. This really depends upon the manufacturer and model of your scooter, but a 150 cc scooter will generally top out at about 60-65 mph. The cheaper Chinese models will only do about 50-55 mph, while good Hondas will go up to 65 mph.I had an 86 Honda Elite 150 scooter, and it would do about 63 mph with me on it.treet legal 50 cc: Most street legal 50 cc … scooters will top out at around 40 mph, some slower while others in the high 40s to low 50s. Goped type: These type are quite a bit slower in general due to lack of a transmission and inferior sized wheels. These type will usually top out at about 25-30 mph.