Sidestand always. Only use the center stand when working on it. If it were strictly my bike, I would have removed it already, but since the wife rides it more than me, not to concerned about weight/performance, at least for now. Plus, it is a pain in the ass getting it on the center stand. I saw a couple posts right after I got this thing by people looking for a rear grab bar and I couldn't figure out why. Now I know. LOL