style 18

Just replaced these with a set of Style 68s and need the room in my garage, so selling up. OEM BMW Style 18 7.5x17 225/45 R17 ET 41 8.5x17 245/40 R17 ET 41 They are generally in decent condition and with a basic refurb would come up lovely. None of them are bent or cracked. All four wheels...

Here's Green Bum Car, aka Pocket Rocket (my wife and in laws in general like giving names to cars!). Short of changing wheels, I think I could add spacers to the back. From my reading with these style #18, I could add 20mm spacers... So, Yeah, Nay? Is 20mm OK? I saw 2 models, one made of steel (...