255/45 on stock 18x8 wheels? Besides 1.3% speedo/gearing error good idea or bad idea?
01-19-2005, 03:09 PM
#1
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255/45 on stock 18x8 wheels? Besides 1.3% speedo/gearing error good idea or bad idea?
I have an affliction where I have to research everything to death before making a decision and right now it's tires.
One of the tires I'm considering only comes in 255/45. Anybody else running that size on the stock wheel or an 18x8 wheel? I keep getting told that I should use 18x8.5 if I want to use 255 tires.
Thoughts?
One of the tires I'm considering only comes in 255/45. Anybody else running that size on the stock wheel or an 18x8 wheel? I keep getting told that I should use 18x8.5 if I want to use 255 tires.
Thoughts?
01-19-2005, 03:21 PM
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I'm running 255/45/18 and love 'em.
Gives the A8 a meaner look from the rear with the extra 10mm of width. I have 8" wide wheels and they fit fine, but 8.5" would be better. Sorry, but this is the only photo I have so far:
<img src="http://pictureposter.audiworld.com/66776/new_shoes_dawn_cropped.jpg">
<img src="http://pictureposter.audiworld.com/66776/new_shoes_dawn_cropped.jpg">
01-19-2005, 03:29 PM
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Check the tire manufacturer's web site ...
for the exact tire, but normally 8.0-9.5 is OK for 255/45-18. The design rim for this size is 8.5", but +/- a bit is certainly acceptable.
The overall diameter of the 255/45-18 is essentially identical to my 255/35-20. I've had zero problems with this size using either the Bridgestone S-03 and the Michelin PS2.
What tire are you looking at?
The overall diameter of the 255/45-18 is essentially identical to my 255/35-20. I've had zero problems with this size using either the Bridgestone S-03 and the Michelin PS2.
What tire are you looking at?
01-19-2005, 04:15 PM
#7
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It should be ok but you can't run max air pressures.
Goodyear recommends 8.0 to 9.5 inch wheels for a P25545ZR18. If you run max air pressure, you might get excessive center wear.
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01-19-2005, 06:05 PM
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Cheap and quiet, kumho ecsta asx...or pilot sport a/s. Can't decide.
This is my first real luxury car(A8L) and I want it as plush as possible.
Any other suggestions?
Any other suggestions?
