SQ5 What wheel fitment will work?

21-inch x 9J ET35 with 265/40 21 Continental TS860S winters and/or SUV 265/40 21 Michelin Pilot Sport 4 work, I can assure you of that.

SQ5 SUMMERS

If you want clearance measurements I'll take 'em in November when I swap over to winters, but I'm sure that 4mm inset - 9J ET 39 would not be an issue - all depending on your tyre choice of course. And, as I've said before, I love the handling/ride on these @ 31/27psi