we once had a fs1e and tuned it up and boy o boy did it go ,we put it threw speed trap and it hit 70mph that at donington park but blew it up after but yes a fs1e is king take peddles off put ace bars on n it gos lke stink faster than all these moden scotters and that was 30 years ago ooooooooo and put on a exspation chamber exhorst get it ported have fun mate