IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Tire Question

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Old 06-26-07, 08:07 AM
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dan206
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Default Tire Question

Curious to why people are getting higher sized tires for the front?
Tire Size Front: 235/35/19
Tire Size Rear: 275/30/19

ront: 245x35x19 - offset 35 +3mm hubcentric spacer (clear bb)
rear: 275x30x19 - offset 42? no spacer

Also any opinions to the most quiet Tire out there for some 20's?

Thanks.
Old 06-26-07, 08:33 AM
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for example on my car my stock rear was
255/40/18 (stock)
275/30/19 (after)
Those are basically the same diameter around. I can't explain it as good as the article

http://www.tirerack.com/tires/tirete...&currentpage=7
Old 06-26-07, 09:06 AM
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SoddingGit
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Originally Posted by dan206
Curious to why people are getting higher sized tires for the front?
Tire Size Front: 235/35/19
Tire Size Rear: 275/30/19

ront: 245x35x19 - offset 35 +3mm hubcentric spacer (clear bb)
rear: 275x30x19 - offset 42? no spacer

Also any opinions to the most quiet Tire out there for some 20's?

Thanks.
'higher' wider = larger contact patch, more traction for cornering, accelerating, etc.

'higher' larger diamer = mostly looks. There is a reason you don't find a lot of racing wheels larger than 18's.
Old 06-26-07, 09:16 AM
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mandyfig
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Good info, I would stick with wider.
Old 06-26-07, 09:37 AM
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llamaboiz
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Originally Posted by SoddingGit
'higher' larger diamer = mostly looks. There is a reason you don't find a lot of racing wheels larger than 18's.
If your serious about 1/4mi you'll put on some 15" rims, the bigger/smaller the rims the more it affects your final drive ratio.

example for 2IS: 4:56 with 15" rims/3.73 with 20" rims (these are not correct just an example)
Old 06-26-07, 09:56 AM
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dan206
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I get all that but they are getting higher sidewalls than the back..

35 series in front vs. 30 series in back... Shouldn't the sidewall size match? I am thinking with that kind of set up it would look like its riding lower in the back higher in the front. What is the reasoning in that?
Old 06-26-07, 10:43 AM
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leegina
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Not exactly. Take 35% of the 235 versus 30%of 275. So the sidewall size would be determined by taking 235 and times it by 35 percent and for the rear it would be 275x30% that is how it is determined how high the sidewall is.
Old 06-26-07, 10:50 AM
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dan206
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got ya ok that makes sense then..
Old 06-26-07, 10:58 AM
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iSuxeL
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Wider is not always better. If its not necessary than why get it? It costs more and its heavier. I would suggest getting whats recommended. IMO. And for a quiet tire, Ive heard that the Falken FK452's are excellent for quiet. You should actually check out General Exclaim UHP's theyre cheap and actually a very good tire.
Old 06-26-07, 11:01 AM
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Don't worry so much about the theoretical aspect ratio of the tire as much as the actual outer diameter as reported by the manufacturer. For example, some makes / models of a 225/40 - 18 will be taller and / or wider than others.
Old 06-26-07, 11:35 AM
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dan206
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Originally Posted by Gernby
Don't worry so much about the theoretical aspect ratio of the tire as much as the actual outer diameter as reported by the manufacturer. For example, some makes / models of a 225/40 - 18 will be taller and / or wider than others.
haha damn and you figure sizing would be the key to making it universal. So its like a damn shoe foreal everyone fits differently. so falken is quiet I have also seen that the Pzero Nero is quiet too.. How about a verdict on the TOYO t1rs.

Last edited by dan206; 06-26-07 at 11:56 AM.
Old 06-26-07, 11:44 AM
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I like T1Rs, excellent wet traction.
Old 06-26-07, 11:49 AM
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I'll be buying goodyear F1 GD-S3, only cuz i like the tread patteren

235/45/18
275/40/18
Old 06-26-07, 11:50 AM
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leegina
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I just put on Bridgestone Re960 All Seasons and I love them. I think you give a little cornering but for the noise and comfort of the tire with 19s it still feels stock or close to it. This tire got good reviews on tirerack as an allseason tire. I have the Generals on the wifes car and I feel like I am in a peterbuilt because of the noise.
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