The new Yamaha SZX 150 is a 153cc engine Bike and is another version of the Yamaha SZ 150 bike.Yamaha SZX 150 features Electric start.It lacks Disc brakes.Te new SZ-X is powered by an all-new 4-Stroke air-cooled, SOHC single cylinder with 153cc engine that has been tuned for optimum performance .