It's never that simple, when you stretch it you will usually have to get a new shock or upgrade it. They sale extension kits for cheap. I haven't herd of anyone doing the 180 to 240 swingarm stretch," not saying it can't be done" just never herd of it. You will also have to mod your frame to stop chain slap, ezz pezz. I got my 240 kit used and the guy who I got it from had a roaringtoys swingarm. [video]http://m.youtube.com/watch?v=LSU8fH1bnC4[/video]