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The Tire Rack's Tire & Wheel Forum
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Old 06-01-2011, 11:22 PM   #1
Alexotronic
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Shopping for new FRONT tires

So after nearly plowing into a curb due to understeer I've decided that it is time to replace my worn fronts. (and to finish all my braking BEFORE entering a corner ;-))

I currently have 225/45 R17. I'd like to upgrade to 235/40. (Stock suspension)

Does anyone have any recommendations on tires? Looking at the tire rack website I'd expect to be paying 130-200$ per tire. I'm looking for a balanced tire that will last long and grip tight.

Continental extreme contact seems to be popular. (plus good treadwear) I wonder why they are so much cheaper than the others...

Pilot Sport and Potenza are popping up pretty often too.

Not sure if there is much argument as to which is the "best" tire. (like Orion V2s vs EAS Auroras angel eyes)
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Old 06-01-2011, 11:56 PM   #2
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I've never had any problems with the general exclaim UHPs, are you looking for a summer or an all season or what exactly?
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Old 06-02-2011, 09:18 AM   #3
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All season. The winters don't get too snowy here in NC.
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Old 06-02-2011, 12:15 PM   #4
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I read that the wider you go in the front, the less crisp the handling is. 225 to 235 isn't too huge of a jump. Anyone know what I should expect?
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Old 06-02-2011, 12:24 PM   #5
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Originally Posted by Alexotronic View Post
I currently have 225/45 R17. I'd like to upgrade to 235/40. (Stock suspension)
235/40 is too narrow of a sidewall, you need to run 235/45

Quote:
Does anyone have any recommendations on tires? Looking at the tire rack website I'd expect to be paying 130-200$ per tire. I'm looking for a balanced tire that will last long and grip tight.

Continental extreme contact seems to be popular. (plus good treadwear) I wonder why they are so much cheaper than the others...
Continental DWS or DW is my recommendation. However, you should pair it with your rears as well. If you don't want to match tires, you need to find something for the fronts with similar handling/grip, otherwise you'll have all sorts of handling problems.
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Old 06-02-2011, 01:05 PM   #6
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Thanks for the input Penguin.

I have continentals up front and potenzas in the rear right now (blame previous owner).

Right now the rear is 255/40. So I figured I'd get the the same sidewall size. So 40 is ok for the rears but not the front? That seems strange.
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Old 06-02-2011, 01:11 PM   #7
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Purchase a set of Continental ExtremeContact DWS tires. They're the go-to tire for my customers with all season needs.
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Old 06-02-2011, 09:39 PM   #8
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Thanks for the input Penguin.

I have continentals up front and potenzas in the rear right now (blame previous owner).

Right now the rear is 255/40. So I figured I'd get the the same sidewall size. So 40 is ok for the rears but not the front? That seems strange.
40 is a percentage (i.e., ratio) of the tread width not a static figure.
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Old 06-03-2011, 11:03 AM   #9
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Hope I'm not being dense, but are the front and rear rims the same? (M68s) If so then I am confused/concerned as to why the rears are 40.
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Old 06-03-2011, 12:46 PM   #10
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Hope I'm not being dense, but are the front and rear rims the same? (M68s) If so then I am confused/concerned as to why the rears are 40.
From the factory they come staggered (i.e., rear wheels are wider than the fronts). As a result, the rear tires are typically wider than the fronts.

However, the second number in the tire specifications is a percentage of the tread width.

205/50R17 = 205mm * 0.50 = 102.5mm
225/45R17 = 225mm * 0.45 = 101.25mm
255/40R17 = 255mm * 0.40 = 102mm

235/45R17 = 235mm * 0.45 = 105.75mm
235/40R17 = 235mm * 0.40 = 94mm

235/40 produces to narrow of a sidewall. And while the 235/45 is a little bit taller than specification, it's closer than the former.
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Old 06-04-2011, 10:00 AM   #11
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Ah. I was thinking it was a ratio based on rim size(?). This makes sense now. Thanks again Penguin!
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