Hey, if the tire goes flat on the rear of the bike your in trouble. Trying to get it on the center stand flat. Well, been there done that. It was in the shed. Not much room to work with. Center stands can be a pain. Glad I got one. What I know is even the side stand will not keep the bike up.15.5" for a GL650
16" for a GL500
Am I wrong? Been there.