Why you should get 255/40-17 tires for your OEM rims !!!
#841
Team Owner
Have a safe trip. I'm jealous that you're going to NY. Let me know if you take that short cut through So Cal lol.
#842
Intermediate
Spacers & extended studs
I was planning on having my factory set refinished and making them a winter set but damn they turned out too good. If I am looking at the Continental 255/40 17's does anyone know of a good place for a 10mm spacer for the back? Also what about extended studs where and are they necessary?
#843
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I was planning on having my factory set refinished and making them a winter set but damn they turned out too good. If I am looking at the Continental 255/40 17's does anyone know of a good place for a 10mm spacer for the back? Also what about extended studs where and are they necessary?
#844
Level: Noob
iTrader: (1)
It will work and it should work with no "weird" issues but you're adding 10mm to the width of the tire and only .25" to the rim. Since measured tread widths vary you could look for a 265 that runs narrow and a 265/40 will be about 4mm taller vs a 255/40. I mention this because it sounds like you might want slightly more sidewall.
#845
One on the right for me
Inside edge wear is only because of camber. Too much toe wears the tires quicker so it makes inside edge wear quicker. As a Honda master tech said, every Honda product will have inside edge wear if the tires are left in the same position long enough. Usually when people go wider they're going softer as well so that makes the problem worse.
Toe can make the leading edge wear quicker which if its toe out it would be the inside edge but if there was no camber problem a toe problem would wear the while tire quicker, almost evenly.
I've found that driving down the freeway mostly will help accelerate the edge wear. Driving "spiritedly" seems to give more even wear.
I'm leaving out details because I'm on my phone so I'll probably be called out on that.
Toe can make the leading edge wear quicker which if its toe out it would be the inside edge but if there was no camber problem a toe problem would wear the while tire quicker, almost evenly.
I've found that driving down the freeway mostly will help accelerate the edge wear. Driving "spiritedly" seems to give more even wear.
I'm leaving out details because I'm on my phone so I'll probably be called out on that.
However, my annual mileage increased to about 25k/year about 3 years ago. I've had the 255 set up for quite some time but noticed the dramatic increase in amount of inner tire wear. I think I may be able to find the last two or three alignment sheets.
#846
Suzuka Master
iTrader: (1)
Up to $80 rebate on Goodyear/Dunlop tires people....if interested
@tirerack
http://www.tirerack.com/tires/tires....omCompare1=yes
@tirerack
http://www.tirerack.com/tires/tires....omCompare1=yes
#848
Team Owner
255/40 is a tiny bit smaller diameter than stock. 245/40 is too small. The car will drive fine as long as all 4 are the same diameter but they will look funny. Better off using an 18" rim for that size. The 255/40 and 245/45 look pretty close to factory diameter.
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ignition_key (09-29-2013)
#849
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You can use the following to help you get an idea of what or how you are changing sizes and geometry -
http://www.rimsntires.com/specs.jsp
http://www.1010tires.com/Tools/Tire-Size-Calculator
https://acurazine.com/forums/tire_rim_calculator.php
http://www.rimsntires.com/specs.jsp
http://www.1010tires.com/Tools/Tire-Size-Calculator
https://acurazine.com/forums/tire_rim_calculator.php
#851
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During the Winter months where you are seeing snow, you are better off with the OEM size or narrower in general. Wider tires tend to ride on top of the snow and narrower tend to sink in / cut into the snow.
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Minihogg (11-08-2013)
#852
#853
the overexplainer
now that the rain is inevitable and my Ventus V12s have tread a hair above the wear indicators i went ahead and ordered 255/40-17 Continental DWS for $145/each installed.
Should be in by next week.
On another note, G-Max tires are backordered nationwide
originally the tire i wanted.
Should be in by next week.
On another note, G-Max tires are backordered nationwide
![Frown](https://acurazine.com/forums/images/smilies/frown.gif)
#855
Drifting
iTrader: (1)
A 16” wheel will usually also be 2” narrower than an 18” wheel, and so take a tire that is both smaller in diameter and narrower. A smaller and narrower tire has better grip and performance in snow or ice. This is both because the smaller tire cuts through snow more effectively, and because the weight of the car is pressing on a more focused set of contact patches.
#856
Suzuka Master
iTrader: (1)
What warm tire psi are you guys using with this size?
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MEKO (11-20-2013)
#858
Suzuka Master
iTrader: (1)
Have you tested with adding around 3-4 more psi than the door tag?
Compared to stock, with these size, tire gets wider and a little shorter on the sidewall right?
I have 225, was going to go with 255 but...
Anyways, which means a little shorter width and little shorter sidewall compared to stock
Well, made me say I have to go lower psi then stock, and I was right.
With door tag psi, car was feeling like, it wants to jump off to the next lane, while taking fast turns..
28 front, 27 is my cold psi and feels perfect.
Wondered if anyone felt better by adding more psi to 255s than the door tag says
Compared to stock, with these size, tire gets wider and a little shorter on the sidewall right?
I have 225, was going to go with 255 but...
Anyways, which means a little shorter width and little shorter sidewall compared to stock
Well, made me say I have to go lower psi then stock, and I was right.
With door tag psi, car was feeling like, it wants to jump off to the next lane, while taking fast turns..
28 front, 27 is my cold psi and feels perfect.
Wondered if anyone felt better by adding more psi to 255s than the door tag says
#859
Team Owner
Pressure has more to do with tire construction than size. I've run nothing but a 255 since the OEM tires and I've had some like the BFG Gforce Sport want 45psi for best traction and on the other end the Nitto NT05 seems to be best at 35psi hot which is barely 30psi cold. I have to compromise because my trips are usually so short so I run 33psi cold so they're close to optimum while driving.
#860
Need to buy new tires here within the next couple weeks. Pretty sure I am going to go with the Michelin Pilot Sport A/S 3.
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
#861
Suzuka Master
Not sure how you think a 265/40 matches stock diameter, but people run 215 on 10.5's. a 265 on a 8 isnt a problem. not somethin I would do, but no problem.
#862
Says they're both 25.3 inches diameter?
Any particular reason you advise against it?
#863
Drifting
iTrader: (1)
Need to buy new tires here within the next couple weeks. Pretty sure I am going to go with the Michelin Pilot Sport A/S 3.
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
#864
Team Owner
Need to buy new tires here within the next couple weeks. Pretty sure I am going to go with the Michelin Pilot Sport A/S 3.
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
I'm trying to work out which size would be better to go with on the OEM rim. 245/45-17 or 255/40-17. Ideally I'm looking to increase contact patch over stock, but also not increase fender gap in a noticeable way (dropped on Tein S Tech).
Really I'd like to run a 265/40-17 since it is the same overall diameter as stock, but would this be too wide for the OEM rim?
The 265 would help with the fender gap over the 255. That's one thing I like about the 255s. I dont want my car to look slammed and with the slightly smaller diameter I was able to come down that much more while still retaining a gap.
#867
6th Gear
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Ok, i know this post is pretty old, but it deserves a renewal! Ive gone through 22 pages and i havent seen a pic of 255/45/17 yet! Please post one if you have one!
#868
So I'm curious if my setup will rub. I have 17x8 +28 lowered about 2.5 inches. No fender gab front and tuck rear a little. Right now on 245/45. My toe in killed the tires so I need new ones. I want to run 255/40 but I'm concerned it may rub. Might have to do 245/40?
#871
Nobody runs 255/40 lowered on coilovers? And if you have stock wheels spacers to be near the offset I'm running?
#873
Level: Noob
iTrader: (1)
I have them on XXR 530's with a +30 offset and I'm rubbing like crazy cuz I didn't do any research. However, it looks VERY beefy and I love how it fills up the arches. With stock rims, or anything with +45, you should be fine. I think. Hit me up if you want pics, this thread is pretty dead by now.
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justnspace (10-08-2014)
#876
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You will be glad you did!!
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#877
Racer
I figured I would revive this thread. Just had 255/40R-17 installed on my 07 TL-S and I absolutely love it. The traction is incredible. I used the recommended pressures stated in here. I went with a Bridgestone Potenza RE-11. All said and done it cost about $800 installed. ![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
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#878
Damn, wish I would've read this thread before ordering 235/45s for my new TL-S. Trying to avoid anymore curb rash than it already has. Oh well, next time I will remember (hopefully).
#879
"...because the weight of the car is pressing on a more focused set of contact patches."
Changing the tire size only changes the shape of the contact patch. Basically a 205 tire will have a longer front-to-back, and shorter side-to-side contact patch than a 275 on the same car. The size of the patch itself is determined by the weight of the vehicle, and pressure in the tire.
But in general what they are saying is correct, to "cut" through snow most effectively you want a contact patch that is longer front-to-back, and shorter side-to side. Just the opposite of what you would want for cornering on dry pavement.
#880
KCCO
Thread resurrection time! And what better thread than the granddaddy of tire threads. For anyone who is using 255/40/17 tires right now, do you have any current or recent pics from side on and/or 3/4 view? I am seriously considering this size for my next set of tires and a good percentage of the pic links from this thread are no longer valid. I am wondering about what the 255 looks like for wheel gap on a non-lowered TL.
*Edit* I was exhausted when I finished going through this thread. It took me quite a while!
*Edit* I was exhausted when I finished going through this thread. It took me quite a while!
Last edited by MarcoNorthPolo; 02-21-2016 at 10:31 PM.