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

New Rims need tire sizes

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Old 03-25-14, 09:50 AM
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kyle82757
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Default New Rims need tire sizes

Im going to order Velgen VMB5 19x9 & 19x10.5 I have an AWD 2006 Lexus slammed on BC Coils IM currently running 225/45zr17 and I've modded fenders and liners accordingly so my question is which setup would look better keeping the rolling diameter within 1% on the new rims 225/35/19 (F) and 265/30/19 (R) or 235/35/19 (F) and 275/30/19 (R). Im looking for a mild stretch noticeable but not extreme I'm look at Continental DWS I'm a big fan of these tires but I haven't seen them stretched all that often. Pictures would be great for reference. I've been research all of this site and others and i can't find exactly what I'm looking for in terms of answers so I'm just gonna be direct. Thanks
Old 03-25-14, 10:03 AM
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FSportIS
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I have 225/40R18 and 255/40R18 Continental DWS tires for 18x8 front and 18x9.5 rear and they don't stretch at all because that was what I look for.

I think 235/35/19 and 275/30/19 has very very mild stretch (i think similar to mine) on 19x9 and 19x10.5 while 225/35/19 and 265/30/19 will give you some mild stretch, not aggressive. I also think both of your set up will have stretch on the front more than the rear and your first set will be kind of thin which gives you better handling but rougher ride.

I find it a little funny that the DWS tires somehow look a bit round and fat compared to the summer tires.

Last edited by FSportIS; 03-25-14 at 10:07 AM.
Old 03-25-14, 10:05 AM
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sm1ke
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To keep the rolling diameter as close as possible, do 235/35 front and 275/30 rear. That is a difference of .08% front to rear.

Rear stretch will be mild, front will look more aggressive than the rear. I ran those sizes with 8" up front and 10.5" in the rear, and the stretch looked about the same on both.
Old 03-25-14, 10:08 AM
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sm1ke
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Front: 8" wide, 235/35 tire



Rear: 10.5" wide, 275/30 tire



Tires were Fuzion ZRi.
Old 03-25-14, 12:14 PM
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kyle82757
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I know that setup has the smallest difference in rolling diameter however I know the DWS' are relatively meaty tires which is why I wanted to go for a mild stretch because I want the rims to poke a little bit but I don't want my rims to be vulnerable to mild potholes and whatnot is there any other tire setup I could run with the same rolling diameter and similar stretch? I'm new to stretching tires but I'm going for a clean setup with a slight stretch to reduce rubbing and clearance issues and I want the rims to poke out just a bit.
Old 03-25-14, 12:19 PM
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kyle82757
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Originally Posted by sm1ke
Front: 8" wide, 235/35 tire



Rear: 10.5" wide, 275/30 tire



Tires were Fuzion ZRi.

The rear tire is closer to what I'm looking for maybe one size smaller especially since the DWS' are all season tires and they're probably fatter as well
Old 03-25-14, 01:10 PM
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FSportIS
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Here are my car's pic:


Front: 18x8 with 225/40 DWS tire:



Rear: 18x9.5 with 255/40 DWS tire:



The tires look little fat somehow lol
Old 03-26-14, 06:08 AM
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sm1ke
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"Rim poking" is based on offset, which I just realized you haven't posted. Without that, I'm shooting in the dark. Anyway, I just posted that to show you how those sizes fit on my wheels. I suppose you could do 225/35 and 265/30, but the front tire will probably look more stretched than the rear, though I don't know by how much. And your rim lips will be more exposed since you're running a 9 and I was running an 8.

For reference: 225/35/19 falken fk452 on 19x9.

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