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Hello everyone, ive been scouring all old threads on this - and it seems like only a few here have gone 20" ....
I just bought my '04 ... and in driving it home VA --> FL hit a decent sized pot hole....blew front right tire, cracked that rim a little....and totally F'd up the rear right rim (see pic).
With these rims - pictured, I have to replace all 4 because the company that makes them - AvantGarde - doesnt make 1 or 2 .... has to be a set.
I bought all four tires for it...a 245/35/20 front and 275/30/20 for rear. So will be sticking to a 20" rim.
So my question ..... does anyone know what the offset should be?? or is it something you have to have someone (manuf.) measure? I am thinking the later, so it may be best to take it in to a shop that specializes in rims/wheels????? Cheers.
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
Factory wheel widths were 8.5"F, 9.5"R... for both 18" and 19" wheels... So long as your 20" wheels are the same widths, then the factory offsets would apply. IIRC it was ET44 F and ET46 R, but don't quote me on that. You should be able to find factory offsets somewhere here.
If you go for wider wheels F or R, the offsets will change. Play around with this to figure that out (https://www.customwheeloffset.com/ti...et-calculators) but if I were you I'd stick with the factory wheel widths to avoid rubbing, etc.
There's a rabbit hole you can go down with wider and bigger wheels but I'm not into it. Unless you're doing some custom forged wheel that's going to be lighter and stronger, going with larger boat anchors on the car is never really it. The factory W221 20" AMG are NLA I think, but you might be able to find decent sets on eBay.
Thanks maw...... I am all about factory....I put a lot more value in German Engineering v Redneck Ingenuity
But I am trying to play with the cards I got delt with....which means those tire sizes...as I have four brand new tires....so I just need rims to fit those tires (I know assbackwards!!)
Appreciate the response.
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