245/45/R18 Yokohama Tyres Installed
Getting great ride quality and almost no lack of control over stock tyres...will upload pics tomorrow.
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which ones
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your not having any rubbing issues at all? I was thinking 245/45 might be too beefy of a tire to put on the stock wheels.
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well i just installed yesterday and drove around for a few mins, car is still at the shop going through flywheel and clutch plate upgrade along with brakes and new set of plugs, coils and plug cable. will drive tonight and post status with pics and details of tyre model etc.
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It doesn't sound like much difference but the 245/40 versus 245/45 is going to be an inch in diameter and thus a half inch increase in ride height.
-Mr. Wigggles |
pics
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I have a 245/45/18 Goodyear eagle f1, it gave my car a lowered look since it fill the wheel well nicely. Ride and handling is about the same as stock.
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I'm sorry but a half inch increase in ride height won't give you a lowered look.
Your car doesn't look bad, but it looks raised if anything: https://www.rx8club.com/vbgarage.php...ype=im&id=1285 -Mr. Wigggles |
That looks sweet. Are those rims wider than stock? Do they rub? Do you get any better gas mi with those tires? I do alot of highway driving and would like to drop the revs. Do they help? Any more pics?
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Uploaded pics
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Dont really know which model yokohama.... but looked good and they were also out for 225/45/18's.... so got this instead. I am just worried if i am getting the right speedometer reading or not.
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your speedometer is off by 2.5-3%. Take a look at this stie (http://www.miata.net/garage/tirecalc.html). But it looks good, is your car lowered at all?
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not lowered at all. probably the front mud flaps makes it look like its low...
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Those are the Yokohama ES100. That is one of their least expensive summer only tires, and is in fact one of the best all round choices. They have the longest life expectancy of their summer tire lineup and offer the best grip to tire wear ratio.
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I got Brigdestone Grid 3's in 245/45/18s about three weeks ago; solely because I didn't want to sacrifice ride comfort on lower profile 245/40/18s. My OEM tyres lasted just a little under 37000kms.
Ride is less harsh, and no rubbing whatsoever. I haven't pushed my 8 too much on the new tyres, but there doesn't seem to be much difference in handling. Looks wise, I didn't think they would look too different initially, especially in terms of height, but I was wrong. I don't know if I like them as much as I did the stockers: they look a bit too beefy to me. Here are before and after pics. Can somebody explain why 245/45/18s are different to 225/45/18s in terms of height? Thanks in advance. |
the 45 in 225 is the 45% of 225 and the 45 in 245 is 45% of 245 so hence the half inch height increase but i think fabro knows more about these, i am more of a novoice in these cases.....
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The overall diameter of any tire is roughly equal to the rim size, plus the width of the tire times it's aspect ratio x 2 (for each side of the rim). (from manufacturer to manufacturer there are slight variances)
The 45% of the tread width is the black sidewall you see when looking at the tire from the side. Eg. The diamteter of a 225/45/18 is = 18 inches + (225mm x 45% x 2) = 18" + (202.5mm x2) = 18x25.4 + 202.5 = 659.7mm = 25.97 inches. The diameter of a 245/45/18 is = 18 inches plus 245mm x 45% x2 = 18" + 220.5mm = 18x25.4 + 220.5mm = 677.7mm = 26.68 inches. To determine how much your speedo will be out, you take the diameter of each tire and multiply by pi (3.14159) to get the overall circumference. The difference in circumference between each tire will be proportional to the speedometer reading. |
So would it be better to go with 245/45 or 245/40?
Which would give better performance, and the lower look? I'm not very eduacated with tires..Im looking to get new ones for the stock rims here soon and i want to know which ones to price.. |
The 245/40 is going to be cheaper, more tires to select from and won't throw off your speedo as much since they are closer to your spec diameters. With the 245/45 you will get a better ride, and yes it will close in the gap a little more but at the same time it will increase the height of your vehicle.
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so to keep the lowe look go with the 245/40? a better ride as in quality or handling?
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Originally Posted by blakew15
so to keep the lowe look go with the 245/40? a better ride as in quality or handling?
no lower look, gives you more width, which translates in most cases more grip and better handling. those are yokohama es100. Great tire for the price. |
quality: won't tramline as easily, and you won't feel the bumps as much.
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so the better tire is the 245/40?
sorry for being so stubborn.. |
I skimmed the thread and didn't see him reply to what model of tire he has. They're the AVS ES 100s...I have the same ones for my 8, just in stock size.
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Originally Posted by blakew15
so the better tire is the 245/40?
sorry for being so stubborn.. Changing to a 245/40 would be called a Plus 0 upgrade. |
plus 0 upgrade? that would make it the same as the stock 225/45 then?
arent the 245/40 wider then stock? making them a little better? |
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Originally Posted by onekwik7
That looks sweet. Are those rims wider than stock? Do they rub? Do you get any better gas mi with those tires? I do alot of highway driving and would like to drop the revs. Do they help? Any more pics?
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Originally Posted by blakew15
plus 0 upgrade? that would make it the same as the stock 225/45 then?
arent the 245/40 wider then stock? making them a little better? The plus 0 business is because you aren't upgrading the diameter of the wheel / tire package (ie. going from a 17" wheel to an 18") nor are you upgrading the width of the wheel. just putting a little wider tire on the same size wheel. |
I have the OEM Dunlop SP Sport 8090's on my car now and am really happy with them. When I need new tires, I think I will go with Dunlop SP Sport MAXX in 245/40. They are Tire Racks #1 rated max performance summer tire and are almost $40 cheaper per tire than the 8090's that Tire Rack also sells.
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Originally Posted by snkpkp
Dont really know which model yokohama.... but looked good and they were also out for 225/45/18's.... so got this instead. I am just worried if i am getting the right speedometer reading or not.
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