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

IS 350 Tires

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Old 02-27-09, 07:52 AM
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jnowak
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Default IS 350 Tires

I have 30,000 miles on my tires and it's time reload. I'm thinking about getting the Yokohama S.drives. I like the price at discount tire and reviews however they don't have the correct OEM size for the rears. I was thinking about going with this combo.

Fronts = S.drive 225/40r 18
Rears = S.drive 255/35r 18

Has anyone gone this direction? Or any thoughts would be appreciated.

Thanks
Old 02-27-09, 08:12 AM
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mvlbr
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Most people go 245/40R18 on the rear.
Old 02-27-09, 08:19 AM
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IS35O
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255/35/18 will be fine
Old 02-27-09, 08:35 AM
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mvlbr
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Here are the overall diameters of the following tires:

255/40R18 = 26.03"
245/40R18 = 25.71"
255/35R18 = 25.02" So basically 1" lower in overall diameter

Just go with the 245/40R18 which is closer in height and probably cheaper.
Old 02-27-09, 08:55 AM
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bwesley
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I agree, go with 255/35/18. The profile difference is negligible.
Old 02-27-09, 11:46 AM
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jnowak
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Has anyone used these tires on their car? If so anythoughts on road noise, ride, and how they look?
Old 02-27-09, 11:51 AM
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nwhuey
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check the tire reviews on tire rack, I think their are way more reviews on tire rack, plus tire rack is a vendor on here, check out the section on summer tires
Old 02-27-09, 12:21 PM
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IS-SV
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Originally Posted by mvlbr
Most people go 245/40R18 on the rear.
Why the narrow tire when 255 is standard on rear of the IS350 w/18's
Old 02-27-09, 02:31 PM
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mvlbr
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Originally Posted by IS-SV
Why the narrow tire when 255 is standard on rear of the IS350 w/18's
Overall width:

255/35R18 = 10.2"
245/40R18 = 9.9"

Is a 1/3 of an inch even noticeable?

I'd rather be closer in overall diameter than in width so it won't throw off my speedometer too much not to mention you'll be a full inch lower on the rear than stock with that 35 series. That's just my opinion either way ideally would have to be the 255/40R18 but it's up to the op to decide what he wants to do. BTW why don't you just go with Sumitomo HTRZIII from tirerack? They have the fronts(225/40R18) for $111 each and the rear(255/40R18) for $153 each.
Old 02-27-09, 04:29 PM
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holYcOO
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Originally Posted by mvlbr
Overall width:

255/35R18 = 10.2"
245/40R18 = 9.9"

Is a 1/3 of an inch even noticeable?

I'd rather be closer in overall diameter than in width so it won't throw off my speedometer too much not to mention you'll be a full inch lower on the rear than stock with that 35 series. That's just my opinion either way ideally would have to be the 255/40R18 but it's up to the op to decide what he wants to do. BTW why don't you just go with Sumitomo HTRZIII from tirerack? They have the fronts(225/40R18) for $111 each and the rear(255/40R18) for $153 each.
Not to hijack the thread but how are the Sumitomo HTRZIII? Picking either
Michelin Pilot Sport A/S Plus
Bridgestone Potenza RE050A Pole Position.

Can you mis-match tires. I have fairly new Bridgestone Potenza RE050 on the FRONTS for 18". Do I have to get the same tire for the REAR? Will it mess with the differential?
Old 02-27-09, 09:18 PM
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mvlbr
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Originally Posted by holYcOO
Not to hijack the thread but how are the Sumitomo HTRZIII? Picking either
Michelin Pilot Sport A/S Plus
Bridgestone Potenza RE050A Pole Position.

Can you mis-match tires. I have fairly new Bridgestone Potenza RE050 on the FRONTS for 18". Do I have to get the same tire for the REAR? Will it mess with the differential?

Reviews seem for the most part positive on tirerack:

http://www.tirerack.com/survey/Surve...ommentStatus=P

And yes you can mismatch in brands from front to rear just make sure that both rears are matching sizes and you'll be fine.
Old 02-27-09, 09:37 PM
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nwhuey
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I have the sumitomos htrzIII on my car in the rears and yokohomas on the front, I don't really notice a difference from having the stock tires, if your really a avid car person and notice tiny things then you might have some problems. But I did not notice anything different, and for the price of them its great to have them.
Old 02-27-09, 10:33 PM
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holYcOO
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Great, I think I will be trying those tires out once the tread wear wears out or 1k miles. which ever comes first.
Old 02-27-09, 10:36 PM
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holYcOO
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Originally Posted by nwhuey
I have the sumitomos htrzIII on my car in the rears and yokohomas on the front, I don't really notice a difference from having the stock tires, if your really a avid car person and notice tiny things then you might have some problems. But I did not notice anything different, and for the price of them its great to have them.
How long have you had them for? Tread wearing out evenly and lightly?
Old 02-28-09, 12:50 AM
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my stock tires are 255/40/18 ... so you should be fine


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