I think most alloys are either 6.5J or 7J, with either little or no stretch. Mine are deep dish 8Js with 195/45/15s and a lot of stretch, you can fit your fingers in the gap :grinning:. They're also very close to the suspension struts/springs, and scrub over most bumps as it's been lowered 90mm (I'm acually looking to go lower :laugh
. Superlites will probably give you a lot of stretch, so you'd have to go for wider tyres, I think.