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Discussion Starter #1
Before I join the group buy located here:
http://www.m5board.com/vbulletin/showthread.php?t=108611

I wanted to make sure I will not have fitment issues with my current H&R springs. Currently I am on stock wheels/tires, H&R springs, and H&R spacers and have absolutely zero problem.

With the RG4 20" wheels here are the specs:
20x9 front, 20x10.5 rear

Tire sizes to fit the RAC wheels could be:

Front 20" x 9"
255/35/20
265/30/20
275/30/20

Rear 20" x10.5"
285/30/20
295/30/20
305/25/20

Personally I think either of the above sizes besides the 275 front and 305 rear would work without fitment issues, but what do you guys think?

TIA,

Ryan
 

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What are the offsets of the wheels?
 

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Discussion Starter #3
What are the offsets of the wheels?
Good question, but I don't know the answer. Not sure if the guys from RAC can chime in here, or if this is something they do not disclose.

Maybe some of the buyers of the previous RAC wheels can give me an idea?? Regardless, I know there are a lot of guys running 20" wheels w/ H&R springs that hopefully can give me some sort of idea how the fitment is.
 

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Great thing about custom fitment wheels is that spacers are not needed.
Front's will not rub with any of the sizes mentioned.
Rears WILL rub with 305's (with or without springs), but only under certain circumstances. 285's will not cause problems but are simply too small a tire for a 10.5 wheel. No experience with 295's (didn't do a calculation, but I think the diameters are too far off from stock?).
 

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There's a 295/30 available from Pirelli which is only
slightly larger than stock (26.95 vs 26.85). From my
understanding though the Pirelli is a fairly square tire
so there might be rubbing.
 

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I have only managed to find 255/30/20 & 285/30/20 easily. I can't seem to find any of the wider tyres, well, online at least. Anyone know any good sources online in the UK? :)
 
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