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

Popped Tires, Do i need to replace all 4 or just 2?

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Old 06-05-14, 01:53 PM
  #16  
Noeh
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You should really stick with the same size if you are replacing only 2
Old 06-05-14, 02:47 PM
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FSportIS
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I have recently replaced with DWS tires. They offer decent performance for daily driver, super good in rain, and they are extremely quiet and comfortable. They do not grip as good as the dedicated summer tires like the Dunlop Sport Max though. However, they will last way longer than the summer tires. I buy them for comfort and durability with ok performance in mind.
Old 06-06-14, 12:02 PM
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carlosL250
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Originally Posted by sktn77a
There's a lot of smoke and mirrors about replacing tires on AWD cars. Unless your tires are completely bald (in which case you would be replacing all 4 anyway) you can just replace 2. That's what differentials and viscous couplings are for. You'll see all sorts of theoretical arguments about wheel rotation per mile etc, but nobody has ever shown that any damage actually occurs because of all these theoretical considerations.

You don't have to replace the tires with the same brand and model but its generally a good idea, as different tires on front and rear can cause braking and handling anomalies. Just don't put different tires on the same axle.
So I guess the best case scenario is if i can find the exact same model and brand with similar tread, but that'll b pretty hard, i've asked around and i found a guy that has the contipro contact 225/45/17 91H... i have the nearly the same thing but 91w, if i replace 2 tires with that model will that be a huge difference?
Old 06-06-14, 01:11 PM
  #19  
embolism
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that's fine.

I'm running Michelin performance winter on my front, and Continental Extreme Contact DWS as my rears at the moment haha.

The DWS feels a bit mushier (softer sidewall) but I only drive on weekends now so gonna use up the alpins since they are not good for winter use at this point.
Old 06-06-14, 02:15 PM
  #20  
knguyenk
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Originally Posted by carlosL250
Ok so what exactly is staggered?
Staggered setup is where the height or width or a combination of both tires and rims are of a different size.

For example, a 2007 IS 250 RWD with 18" stock rims would have:

Front: 225 40 R18

Rear: 255 40 R18

Where as my car is 2007 IS 250 AWD with 17" stock rims with:

Front: 225 45 R17

Rear: 225 45 R17

In this case, the staggered setup allows for the RWD to have more rear grip than the AWD with the wider rear tires.
Old 06-07-14, 01:14 AM
  #21  
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oo noted
Old 06-08-14, 02:50 PM
  #22  
droolerk9
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Some notes on tires:

If you get a "used" tire that's fine if you need to get to a place where your wheels can be properly serviced - that is, they are a very temporary solution.

Staggered wheels are when one axle has a different wheel setup than the other axle. And that is typically the wheel (rim) widths are different. For example a car has a front wheel of 19' diameter and an 8' width, the rear wheel is also 19' but is 10' wide. Also the centerline of the wheels will be different (an offset) from one another too.

If you get some new tires, it is important that they be of the same size, brand, model, age and load rating. Always get at least two tires. If the other two tires on the car are not fresh, get four.

It is not important to get or hold off on an alignment when you get new tires, new tires and alignment are separate issues. If you have some odd tire wear issues that are due to misalignment, then a realignment is indicated.

If you want a safe daily driver, get the recommended tire size for your vehicle (see the sticker inside the drivers door B pillar). Check and set the tire pressure to what's posted on your B pillar too regularly. Low tire pressures are the most common cause for tire failures. And that's why it's a law in the US for all late model cars to have a TPMS. If you get tries from a place that offers a nitrogen gas fill, take it if its free. There is very little benefit to having nitrogen as the only gas in the tires of your DD.

Cheers
BK
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