Please help me solve this 20” aftermarket tire stretch issue

[Mark Soliman]

I purchased 20” Vossen vfs6 with a staggered setup (widths are 9” front and 10.5” rear). Rear tires are 285/30/20 and are pictured. I thought the look was unacceptable and due to other reasons unrelated to this I took the wheels off and am reconsidering tire sizes.

Question - for those that have 20” staggered setups, (1) what’s your rear wheel width and (2) do you have the same issue of tire stretching and wheel lip underbite? If no, advise?

Your rear 20” staggered close up pictures much appreciated

 

[remlemasi]

Specs for this tire show a recommended rim width range of 9.5" - 10.5" (https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot+Super+Sport)

Your rim width is right at the maximum of the recommended range.

I definitely hate tire stretch as well and actually aim for a square, meaty shoulder look, even for low profile tires. That typically leads me to choose tires where the rim width is right at the minimum of the recommended range (9.5" in your case).

You can look at the other sizes to see how your rim width relates to the recommended range, but I hesitate to make recommendations on this board as there are so many factors that may or may not introduce rubbing and I don't want to steer you the wrong way.

For example, 295/30ZR20 has a recommended rim width range of 10" - 11". Your rim would be right in the middle with some tire stretch remaining, but not as bad as it is right now.

The downside is that the tire diameter is 27" and section width is 11.9", which is larger than your current tire with 26.8" and 11.6", respectively. May not seem like much, but I'm not sure how close you are to rubbing right now.

The OEM 20" tire is at 26.5" and 9.5", respectively, so you're already exceeding the OEM specs, the diameter just by a bit, but the section width by a huge amount.

Good luck.

 

[Mark Soliman]

Thanks a lot for this really helpful reply!

I wonder is anyone else in the forum running 295’s? Any issues? Does anyone know the maximum tire width I can run without rubbing? Another detail is I just dropped it by 1” using tsportline springs

Thanks to all in advance

 

[Mark Soliman]

Specs for this tire show a recommended rim width range of 9.5" - 10.5" (https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot+Super+Sport)

Your rim width is right at the maximum of the recommended range.

I definitely hate tire stretch as well and actually aim for a square, meaty shoulder look, even for low profile tires. That typically leads me to choose tires where the rim width is right at the minimum of the recommended range (9.5" in your case).

You can look at the other sizes to see how your rim width relates to the recommended range, but I hesitate to make recommendations on this board as there are so many factors that may or may not introduce rubbing and I don't want to steer you the wrong way.

For example, 295/30ZR20 has a recommended rim width range of 10" - 11". Your rim would be right in the middle with some tire stretch remaining, but not as bad as it is right now.

The downside is that the tire diameter is 27" and section width is 11.9", which is larger than your current tire with 26.8" and 11.6", respectively. May not seem like much, but I'm not sure how close you are to rubbing right now.

The OEM 20" tire is at 26.5" and 9.5", respectively, so you're already exceeding the OEM specs, the diameter just by a bit, but the section width by a huge amount.

Good luck.

Assuming I try and minimize the stretching but nit necessarily eliminate it, what are your thoughts on this tire? https://m.tirerack.com/tires/tires....YR0ECSXL&vehicleSearch=false&fromCompare1=yes

It’s still at 285, has a slightly lower diameter but wider tread width.

 

[240W]

305/25/20? that's going the other way, instead of slightly stretching, it'll be slightly bulging but within range. (For square, rim width for that tire looks to be 11 wide)

rubbing issue also depends on offset of the wheel, but I don't remember seeing anyone running larger than 285... yet...

 

[Brando]

custom wheels 275/30/20 and 235/35/20 - TF= Tech Forum

Does a good job of explaining his thoughts and his results. Hope this helps.

 

[remlemasi]

Assuming I try and minimize the stretching but nit necessarily eliminate it, what are your thoughts on this tire? https://m.tirerack.com/tires/tires....YR0ECSXL&vehicleSearch=false&fromCompare1=yes

It’s still at 285, has a slightly lower diameter but wider tread width.

If you take a look at the specs, it still says the recommended rim width range is 9.5" to 10.5". If you're looking for a square profile, the rim needs to be at the low end of that range, i.e. 9.5". Your rim is 10.5", which is at the high end of that range, which means it will look stretched. How much compared to the MPSS is hard to say...

IMHO, a 10.5" wide rim is too big and going with 9.5" (and the same tire) would get you the square tire profile. I know that's not the answer you are looking for, but a lot of this aftermarket wheel/tire game is just trial and error until enough data from enough failed experiments is accumulated. Some people do like the stretched look, so only you can determine whether or not your experiment is a success or failure

I hate the #stancenation look because I think it looks ridiculous. I even think the stock 235/45R18 looks too stretched on my 18" Aeros!

But in all fairness... if you were to ask me why I like the square shoulder profile, my answer would be just as vain: #becauseracecar

 

[240W]

I even think the stock 235/45R18 looks too stretched on my 18" Aeros!

i thought so too, 245 would look like it fits better, but I guess range may have suffered and not reach whatever efficiency goals they wanted

 

[remlemasi]

i thought so too, 245 would look like it fits better, but I guess range may have suffered and not reach whatever efficiency goals they wanted

Yeah, 235 seems crazy narrow to me, especially for the P3D and all that torque.

But I guess it's sufficient since the P3D is already getting crazy fast 0-60 and 1/4 mile times with even the 18" Aeros and Michelin Primacy MXM4 all-seasons.

 

[hdAge]

I purchased 20” Vossen vfs6 with a staggered setup (widths are 9” front and 10.5” rear). Rear tires are 285/30/20 and are pictured. I thought the look was unacceptable and due to other reasons unrelated to this I took the wheels off and am reconsidering tire sizes.

Question - for those that have 20” staggered setups, (1) what’s your rear wheel width and (2) do you have the same issue of tire stretching and wheel lip underbite? If no, advise?

Your rear 20” staggered close up pictures much appreciated

Do you feel any bite or scratch when driving or cornering at all? Or did you just notice the mark when parked? I just started this thread on Vorsteiner with the exact same staggered setup and wheel/tire dimensions as you have.
Vorsteiner VFF-103 aftermarket 20" wheels

But ofcourse every wheel/tire setup is different and the setup has to be tested before pulling the chord. In this case, looks like Vorsteiner has tested this setup and now they have few orders pending.

 

[mobilesuit818]

There is nothing wrong with tire stretch, even more so if you are super wide.

I find tire stretch removes the sidewalk flex but will make the ride harsher a bit.

 

[Blkdragn]

This is very odd and the first I've seen of a 285/30 with that much stretch on a 10.5" wheel. All tires are not created equal and some are wider than others even though they are the same size. Michelins typically are wider and have a rim protector built in but it appears the wheel design might be the culprit. Personally I've ran 275/30 and 285/30 on 10.5" wheels and some manufacturer's 275 tires sat the same way your 285 is fitting which is very odd. I think your wheel may be technically 10.5" wide however with the design of the wheels and how the spokes meet the outside on that beveled edge, it makes the wheel protrude out.

 

[GetYourWheels]

This is confirmed that the 285/30/20 that the OP has is the Michelin Pilot Super Sport K1 with the narrowest tread width at 9.5". The M01 version has the 10" tread width which would help minimize this stretched look.

 

[skrtskrt]

Thoughts on Michelin A/S3+ 235/35/20 on 20x9 wheels? I dont want mine to stretch like his lol.
Im new to wheel stuff so I'm still trying to figure this all out. Below are the specs

It seems like I have the max rim width range of 8-9.5" and I'm right at 9". Not sure what sect. width and tread width means.

 

[Zcd1]

Thoughts on Michelin A/S3+ 235/35/20 on 20x9 wheels? I dont want mine to stretch like his lol.
Im new to wheel stuff so I'm still trying to figure this all out. Below are the specs

It seems like I have the max rim width range of 8-9.5" and I'm right at 9". Not sure what sect. width and tread width means.

Those tires will likely look stretched on 9” rims. My 235/35/20 Michelin Pilot Alpins do on my 9” rims.

 

[skrtskrt]

Those tires will likely look stretched on 9” rims. My 235/35/20 Michelin Pilot Alpins do on my 9” rims.

Are they the Alpin PA4? Below are the specs, mine's at the top and yours is at the bottom. It look like I have .6 more tread width than yours. Could you post close up pics of your wheels?

 

[SDM44]

Tire brands differ in width just slightly. I've had 245 Falkens and 245 Michilins and the Michilins are a slightly wider tire when mounted on the rim.

I used to have a factory 20x10.5 on my previous 530e, and it originally came with 275 tires. Those looked stretched a little but with the P-Zero's on them, but did not have that much rim exposed like in your pictures. When I put 295 tires on, it made everything look flush and better looking. It was also visually wider, which I liked, but also gave the rim some extra protection as well. You should be running at least a 295 on those wheels.

 

[Sunshine State]

Yeah, 235 seems crazy narrow to me, especially for the P3D and all that torque.

But I guess it's sufficient since the P3D is already getting crazy fast 0-60 and 1/4 mile times with even the 18" Aeros and Michelin Primacy MXM4 all-seasons.

The Performance S comes stock with 245/45R19’s while having drastically more power and comes off the line so much quicker than the Performance 3. I think the stock Performance 3 235’s could handle more power without any issues. I upped our Performance S tires to 275’s in the back, mainly for looks, but I’m keeping the cheaper 235’s on our P3 because I can rotate them and then not feel bad wearing tires in hard turns.

 

[Lucky13]

It almost seems like there save amount of stretch as I have but technical you're tire should be bigger. I purchased these used and have never been a fan of stretched look but for now I am going to burn thru the tires so as not be wasteful and then will step the sizes up a bit. I do hate to admit that I might actually like the way it looks now as I always use to talk smack about stretched set ups. Lol

 

[Zcd1]

Are they the Alpin PA4? Below are the specs, mine's at the top and yours is at the bottom. It look like I have .6 more tread width than yours. Could you post close up pics of your wheels?