KymcoForum.com

hello everyone , i am a new user to the forum and i own a 2007 super 9 AC . i am looking to upgrade to a 70cc kit but having second thoughts on whether i should or not due to what i have heard about the crank not being able to take power from the 70cc cylinder. i am wanting to know , is there any kind of 70cc/sport/race crankshafts available for my bike and whether they can be shipped to the UK? i am also wanting to know which is the best exhaust to use with tuned engines?

thanks , lewis