tho' 19s & 20s look good and fill up the wheel wells. they are not good for the xB suspension components. hub bearings, cv joints, control arms, shock bolts, etc. i agree, imo 18s would be the max for a daily driven xB, if you prefer ride comfort.
I kno wat u mean, I put 22's on my Tahoe instead of 24's for the same reasons. Still...jus so hard to say no to SEXY...lol