Just like anything else you do that changes stock config. There are going to be effects. Just think about it. Take these things into consideration weight, strain on components(transmission, chain etc) It looks cool and al,l but is it worth it? 3k to 11k. Will you get your money back? No. Ask the guy you buy it from if he would buy it back, Nope. I asked a dealer who sells 240 to 360 size swingarm kits that question in Greensboro and in a nut shell he confirmed it is not worth it but people are going to buy it. Just like any other fad. I my self see more sense in buying another bike before I dump a heap of money in one that is getting older everyday.