Hello all from Tire Rack
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From: Rio de Jeneiro or East Coast
Recently bought 4 OEM, mint condition, M35 wheels (18X8) for $200:
I'm currently running 235/55-17's on the rear and have about 1.5 inches of space between the tire and wheel well/fender. The question is: Will a 245/50-18 tire fit on the rear of an 04 sedan or will I have to roll the fender? I did all the calculations using several online wheel calculators and the diameter is about the same (235/55-17 vs. 245/50-18), the width is approx 1 inch wider.
Finally, for the price, is the Kumho KH16 a good tire in your opinion?
Thanks so much in advance.
I'm currently running 235/55-17's on the rear and have about 1.5 inches of space between the tire and wheel well/fender. The question is: Will a 245/50-18 tire fit on the rear of an 04 sedan or will I have to roll the fender? I did all the calculations using several online wheel calculators and the diameter is about the same (235/55-17 vs. 245/50-18), the width is approx 1 inch wider.
Finally, for the price, is the Kumho KH16 a good tire in your opinion?
Thanks so much in advance.
^ why go for such a odd size tire.
235/45/18 is what stock sedan use. Most can use 245/45 or 245/40 (speedo will be off) but no rolling needed. You didn't state how low you are...
235/45/18 is what stock sedan use. Most can use 245/45 or 245/40 (speedo will be off) but no rolling needed. You didn't state how low you are...
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From: Rio de Jeneiro or East Coast
^^ An odd size would be 195/50/18.
Car hasn't been lowered and rides on stock suspension, and in fact, I've tried to raise it (by 1" via increased tire diameter, which has been this way for >100K miles) to address the huge east coast potholes and brick size ice rocks that at times form in the winter.
Do you think the 245/50/18 will fit if it's diameter is .25" greater than the 235/55/17 but with an ~1 inch wider footprint? Is ,my math wrong here, that's really what I'm asking, I think? Are the tires actually the same in diameter, am I reading the charts right? If the diameter is largely the same, will the 1" width increase be a factor?
Thank you for your response and thoughts.
Car hasn't been lowered and rides on stock suspension, and in fact, I've tried to raise it (by 1" via increased tire diameter, which has been this way for >100K miles) to address the huge east coast potholes and brick size ice rocks that at times form in the winter.
Do you think the 245/50/18 will fit if it's diameter is .25" greater than the 235/55/17 but with an ~1 inch wider footprint? Is ,my math wrong here, that's really what I'm asking, I think? Are the tires actually the same in diameter, am I reading the charts right? If the diameter is largely the same, will the 1" width increase be a factor?
Thank you for your response and thoughts.
Unfortunately not, sorry.
Last edited by neal@tirerack; Aug 30, 2011 at 01:42 PM.
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Can you expand on this a little. 6-7 years ago I was also told the 235/55/17 would not fit... it would rub... too large... I'm crazy. I took a shot and found the same cavernous distance between it and the sides/wheel well as one sees in the 215/55/17, just a bit smaller cavern.
What would the diameter difference be between the 235/55/17 and 245/50/18? I have the diameter at 27.2 vs 27.6 (.5" or .25' on each side) and the width as 9.25" vs 9.64" (.5"). From here the difference seems negligible. The distance between the following letters- TTTTT- in both diameter and width--- or am I missing something?
Not trying to be difficult, just asking.
What would the diameter difference be between the 235/55/17 and 245/50/18? I have the diameter at 27.2 vs 27.6 (.5" or .25' on each side) and the width as 9.25" vs 9.64" (.5"). From here the difference seems negligible. The distance between the following letters- TTTTT- in both diameter and width--- or am I missing something?
Not trying to be difficult, just asking.
Can you expand on this a little. 6-7 years ago I was also told the 235/55/17 would not fit... it would rub... too large... I'm crazy. I took a shot and found the same cavernous distance between it and the sides/wheel well as one sees in the 215/55/17, just a bit smaller cavern.
What would the diameter difference be between the 235/55/17 and 245/50/18? I have the diameter at 27.2 vs 27.6 (.5" or .25' on each side) and the width as 9.25" vs 9.64" (.5"). From here the difference seems negligible. The distance between the following letters- TTTTT- in both diameter and width--- or am I missing something?
Not trying to be difficult, just asking.
What would the diameter difference be between the 235/55/17 and 245/50/18? I have the diameter at 27.2 vs 27.6 (.5" or .25' on each side) and the width as 9.25" vs 9.64" (.5"). From here the difference seems negligible. The distance between the following letters- TTTTT- in both diameter and width--- or am I missing something?
Not trying to be difficult, just asking.
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From: By the sea, Tx
G35 sedan w/ too much money in mods

Thanks for the clarification even though that's not the response I wanted.
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From: Rio de Jeneiro or East Coast
You have the size numbers correct between the two sizes. Both seems a tad taller than normal for a sedan (assuming this is a sedan) and can't guarntee either one honestly. Best way to make sure is test fit one locally if you can or purchase one, fit it, and send it back if it does not work.
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Thanks a million Neal, you've been very helpful.
I have a 2006 G35 coupe with the 19-inch tire package. Needing to buy a new set of tires and am considering the following.
Current Set:
Front: Kumho Ecsta SPT
Rear: Kumho LX Platinum
Options - No Particular Order:
1) Hankook Ventus V12 Evo K110
2) Yokohama AVID ENVigor
3) Michelin Pilot Super Sport (a lil pricy!)
4) Sumitomo HTR A/S
A few things to consider:
- I'm actually pretty happy with my current set up. Tires wore down a bit faster than expected, but it appears I have a minor alignment issue which is probably a main factor.
- Driving Conditions - Mostly highway; "Performance" isn't a major factor but I like to drive peppier when I can (which is almost never!). Not necessary to drive in the snow, but should be good in light dustings and in rain.
- Most important factors: Tread Life & Noise Level. Not interested in spending my life savings.
Any recommendations you can make are much appreciated!
Thank you!
Current Set:
Front: Kumho Ecsta SPT
Rear: Kumho LX Platinum
Options - No Particular Order:
1) Hankook Ventus V12 Evo K110
2) Yokohama AVID ENVigor
3) Michelin Pilot Super Sport (a lil pricy!)
4) Sumitomo HTR A/S
A few things to consider:
- I'm actually pretty happy with my current set up. Tires wore down a bit faster than expected, but it appears I have a minor alignment issue which is probably a main factor.
- Driving Conditions - Mostly highway; "Performance" isn't a major factor but I like to drive peppier when I can (which is almost never!). Not necessary to drive in the snow, but should be good in light dustings and in rain.
- Most important factors: Tread Life & Noise Level. Not interested in spending my life savings.
Any recommendations you can make are much appreciated!
Thank you!
Given the colder temps, longer life, and low noise I would toss out the Super Sport and Hankook as they are summer based only. Those tires focus heavily on dry traction and steering response and sacrifice everything else to get it. Seems a bit overkill for the type of driving you do as well.
The Sumitomos I do not show come in the rear size, which leaves us with the Yoko's. I've had no complaints on those, many are using them with great results. Overall a good dd tire that will withstand some abuse but not beat you up in the process. Shouldn't have any issues with the amount of snow you get either.
The Sumitomos I do not show come in the rear size, which leaves us with the Yoko's. I've had no complaints on those, many are using them with great results. Overall a good dd tire that will withstand some abuse but not beat you up in the process. Shouldn't have any issues with the amount of snow you get either.





