I was wondering what would be the best setup to make my ds into a big bore and still be able to ride trails without having to extend my swingarm too too much or not at all...I am most likely going to go with a stock bore kit and carb,cdi,etc...I know hpr is good but what setup would you guys run from experience...and would I also need to chave my flywheel if I went with the stock bore...Thanks once I get my new 450r payed off I am looking into giving my ds a whole new facelift engine wise.