How fast is 120cc engine?
The top speed of a 120cc engine depends on several factors, including the type of vehicle it is installed in, the gearing, and the weight of the rider. In general, a 120cc engine can power a scooter or motorcycle to speeds of around 60-70 mph (97-113 km/h). Some high-performance scooters and motorcycles with 120cc engines can reach speeds of up to 80 mph (129 km/h).