tires

"OPPOsaurus WRX" (opposaurus) 01/26/2016 at 10:45 • Filed to: None

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i’ll need tires soon for the Allroad. The internet says they are 225/55/r17. Could i go to a 225/65/r17? What do you guys think of these?

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Steve is equipped with Electronic Fool Injection > OPPOsaurus WRX 01/26/2016 at 10:54

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LIFT IT.

bob and john > OPPOsaurus WRX 01/26/2016 at 11:01

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your increasing the sidewall with that. so your speedo will be inaccurate as well.

Future next gen S2000 owner > OPPOsaurus WRX 01/26/2016 at 11:15

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Should fit. About 1.75" diameter difference if my math is correct. So about 7/8" of an inch different radius. Just be sure to update your speedo. A hand held tuner should be able to take care of it in a couple minutes.

HammerheadFistpunch > OPPOsaurus WRX 01/26/2016 at 11:19

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This might help

Rustholes-Are-Weight-Reduction > OPPOsaurus WRX 01/26/2016 at 11:34

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I have those on my Pajero, size 265/70R15. On the road they are great, all the grip you need (as far as you need it with 84 HP) and they are really quiet. On mud, you have to keep the tires spinning fast enough, or they get clogged.

OPPOsaurus WRX > Rustholes-Are-Weight-Reduction 01/26/2016 at 11:37

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thats not bad, i do mostly road driving

OPPOsaurus WRX > Future next gen S2000 owner 01/26/2016 at 11:58

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its odd that the P225/60R17 are more expensive than the P225/65R17

OPPOsaurus WRX > Steve is equipped with Electronic Fool Injection 01/26/2016 at 11:59

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wouldn;t getting a wider tire not be good if its goin on the same wheel?

OPPOsaurus WRX > HammerheadFistpunch 01/26/2016 at 12:00

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that is pretty cool. is there any benefit/negative to going with a taller or wider tire for average driving?

HammerheadFistpunch > OPPOsaurus WRX 01/26/2016 at 12:03

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yup - Taller sidewall means a better ride on rough roads but means less sidewall stiffness for less cornering precision. Wider tires give you (generally speaking) more lateral grip but a little more noise and weight.

Steve is equipped with Electronic Fool Injection > OPPOsaurus WRX 01/26/2016 at 12:04

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It’s 30 mm wider but also 40 mm higher off the rim so it’ll fit just fine.

Future next gen S2000 owner > OPPOsaurus WRX 01/26/2016 at 12:09

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Could just be an odd size not used by many manufacturers. Uncommon sizes have a premium.

Dusty Ventures > OPPOsaurus WRX 01/26/2016 at 12:55

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Personally I wouldn’t. That would be a 7% increase in diameter, which is pretty significant (most manufacturers advise against exceeding 3-5% on most vehicles). To give you an idea how much of a difference that makes, when your speedometer says you’re doing 70 you’ll actually be doing 75 on those tires.

OPPOsaurus WRX > Dusty Ventures 01/26/2016 at 12:56

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so maybe 60's over 65's or just stay with the 55's?

Dusty Ventures > OPPOsaurus WRX 01/26/2016 at 13:02

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Are there any 205/60's? Because those would be the exact same diameter, just a bit narrower tread

Dusty Ventures > OPPOsaurus WRX 01/26/2016 at 13:03

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BTW, I use the tire size comparison tab here to check how different tire sizes would stack up.

OPPOsaurus WRX > Dusty Ventures 01/26/2016 at 13:12

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i was thinking more of how would it affect the vehicle and if it would fit or not or if it would be ok to go up a size. and if those tires are nay good

Dusty Ventures > OPPOsaurus WRX 01/26/2016 at 13:23

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Well, going up a size adds rolling mass, which, depending on the amount added, could wear things out more quickly. The 65's also reduce your suspension uptravel by about an inch. And again, your speedometer and odometer will read off (when the odometer says you’ve done 1,000 miles you’ll really have done 1,070 on those tires). I remember reading something at one point about bigger tires and ignition timing as well, but that could be one of those things that only pops up with a significant tire size change.

OPPOsaurus WRX > Dusty Ventures 01/26/2016 at 13:25

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do you think i’d be safe going with a 60 over a 55?

Textured Soy Protein > OPPOsaurus WRX 01/26/2016 at 13:31

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Is there a particular reason you want all-terrain tires?

If you’re doing mostly road driving and want something that is better than all-season tires in winter but won’t burn up in the summer like a snow tire, you should look at an all-weather tire. All-weather tires have similar rubber compounds and siping to winter tires, but not so much so that they will have their performance degraded by driving around in normal temperatures.

I do mostly road driving with my Grand Cherokee, and since it’s my winter car, I didn’t want to get a second set of wheels & tires for it. It came down to either going for an on-road all-weather tire, or an all-terrain tire with the severe snow duty certification (which the Yoko A/T-S does not have). I ended up picking the all-terrain option, because I felt like it suited the Grand Cherokee better, and would be more appealing to potential buyers. Because I put so few miles on it, I figured the same tires would be on it whenever I get rid of it. So I got a set of General Grabber AT2s.

Combined with the Quadra-Drive II 4wd which has 3 eLSDs, they give amazing traction getting going in snow, even really deep stuff. Snow braking is ok, but they don’t have the extensive siping of a winter tire and it’s easier to get into the ABS than if I had a winter tire. Snow turn-in grip is also good but not quite up there with a proper winter tire. But they’re also really heavy, and taller than stock, which lowered my mpg.

Personally, I don’t think an Allroad is the type of vehicle where A/T tires are going to increase the resale. 225/65-17 is 1.75" taller than 225/55-17, and the A/Ts will be heavier as well. Your mileage will go down. Instead, I’d go for the Nokian WRG3 all-weather tire. It’s going to be better in winter anyway, and more suited to the vehicle. They make a WRG3 SUV which I believe has more tread depth. The regular WRG3 comes in your stock 225/55-17 size, and the WRG3 SUV comes in 225/60-17, which if you wanted a bit taller of a tire you could go that route.