I found a set of 20 inch bbs rsgt that originally were for a s55. The specs are 8x5 fronts 9x5 rears. Et 38 fronts and et 38 rears backspacing for the front is 6.30 and rear is 6.71. any input guys?

 

Those seem like go-kart spec wheels.

 

20's look good but slow ur car down .. look for 19's and that way u keep ur performance

 

they should deff fit...

 

19 will run much better than 20's and they look just as good.

Trust me, I have been running alot of these e55's in Orlando and I have 18's and they definitely help to keep up with the more modded e55's around running on 19's and up.

If interested, I have a set of 19" Lorinsers LM5's chrome with tires for sale for $1050 plus shipping.

38offset on both front and rear, 8.5 and 9.5 widths.

 

Pics of lorinsers

 

I'm getting these at a good price plus the weight is 24lbs and the wheel is fully forged. Including the barrel. Tire rack sells them in 19's with almost the same specs so should be good.

 

and that's technically the correct specs. Don't kid yourself, yes, the 20's may be a bit more to "turn over", but the 19's simply don't have the visual impact that the 20's do. Get some proper (read: not cheap/crappy) tires, and have someone set them up properly, with an aligment, and it should be fine. BTW, let me know if you decide not to take them!

 

BBS FTW!~!~