just try it out.. when you know how the bike handles, like best moment to shift gear, just try it. The important thing is not to crank the throttle on that moment. It goes deceivingly easy. I like it cause you can really do everything with one hand, perfect for cruising at low speeds in low-traffic
area's, just chill!
So no CRACK CRACK sound!
If this is intended for racing, then someone else has to answer this...