[BigKutta]

I thought I'd put this in technical but its slow there. I put on 437s with winters yesterday, and notice some rubbing up front almost immediately as I pulled out of the garage. Tried to replicate it this morning and it happens only at slow (crawl) speed while a bit past half turn. So like pulling out of a parking spot while turning out. I took a picture and confirmed the tire rubbed against the front part of the fender liner. So, I went from the stock 245s to 255/35/19 Pirelli Sottezeros. This is not a lot wider than stock so what gives? Did I do something wrong?

Thoughts and advice appreciated

[VisualEcho]

That is weird. Compared to the stock PSS it's actually .5 skinnier, and only .2 taller (only .1 of that is on the top side). I'm guessing it's down to the shape of the tire.

Still weird. I would not have believed these tires would rub at all. Sure you didn't get a 255/40?

[DrKevM5]

Check to see if the fender liner became dislodged

[AndrewC1989]

Known issue. M2C has a different front-liner than the OG (because of the difference in cooling hardware maybe) and doesn't accommodate as much tire. Some people have heated the contact area up with a heat gun and then pushed it inwards and poured cold water on it immediately after to push/bend it away from the wheels. That seems to be the most elegant workaround:

https://f87.bimmerpost.com/forums/sh...4&postcount=33

[BigKutta]

Originally Posted by VisualEcho

That is weird. Compared to the stock PSS it's actually .5 skinnier, and only .2 taller (only .1 of that is on the top side). I'm guessing it's down to the shape of the tire.

Still weird. I would not have believed these tires would rub at all. Sure you didn't get a 255/40?

Not unless they printed wrong on the tire 😃

[BigKutta]

Originally Posted by DrKevM5

Check to see if the fender liner became dislodged

Liner look good and in place

[VisualEcho]

Originally Posted by AndrewC1989

Known issue. M2C has a different front-liner than the OG (because of the difference in cooling hardware maybe) and doesn't accommodate as much tire. Some people have heated the contact area up with a heat gun and then pushed it inwards and poured cold water on it immediately after to push/bend it away from the wheels. That seems to be the most elegant workaround:

https://f87.bimmerpost.com/forums/sh...4&postcount=33

But damn, a tolerance of 2.5 millimeters? That's like no tolerance at all, especially when the tire is so much skinnier than stock. Something just seems very wrong with this.

[BigKutta]

So this may take us down a technical path, but now that my OEM 788s with PSS are sitting off to the side, i do notice the fronts are not as tall as the rears with tires mounted, much more so that the 437s with Pirellis (difference was slightly less between rears and fronts). Sorry if this is a stupid questions but could it be that the rim sizes different in our OEM setup versus the 437s I installed?

[AndrewC1989]

Originally Posted by BigKutta

So this may take us down a technical path, but now that my OEM 788s with PSS are sitting off to the side, i do notice the fronts are not as tall as the rears with tires mounted, much more so that the 437s with Pirellis (difference was slightly less between rears and fronts). Sorry if this is a stupid questions but could it be that the rim sizes different in our OEM setup versus the 437s I installed?

As far as I know 437s and 788s have identical sizes/offsets.

[VisualEcho]

Originally Posted by BigKutta

So this may take us down a technical path, but now that my OEM 788s with PSS are sitting off to the side, i do notice the fronts are not as tall as the rears with tires mounted, much more so that the 437s with Pirellis (difference was slightly less between rears and fronts). Sorry if this is a stupid questions but could it be that the rim sizes different in our OEM setup versus the 437s I installed?

As Andrew said, identical.

OEM OD specs are 25.8/26.3, so you should see the difference visually.

[Poochie]

Originally Posted by AndrewC1989

As far as I know 437s and 788s have identical sizes/offsets.

Don't quote me but wasn't the M4's 437s slightly wider? Maybe thats what he's working with.. 🤷🏻

[VisualEcho]

Originally Posted by Poochie

Don't quote me but wasn't the M4's 437s slightly wider? Maybe thats what he's working with.. ����

Nope, identical specs. If they were wider the entire M2 community would be clambering for them.

Maybe you're thinking of the rear Orbit 763M that's 20".

[Moflow]

Originally Posted by BigKutta

So this may take us down a technical path, but now that my OEM 788s with PSS are sitting off to the side, i do notice the fronts are not as tall as the rears with tires mounted, much more so that the 437s with Pirellis (difference was slightly less between rears and fronts). Sorry if this is a stupid questions but could it be that the rim sizes different in our OEM setup versus the 437s I installed?

Maybe I’m misunderstanding, but I’d expect the rears to be taller than the fronts. 35 percent of 265 will be a bigger number than 35 percent of 245 after all.

[AndrewC1989]

Originally Posted by Poochie

Don't quote me but wasn't the M4's 437s slightly wider? Maybe thats what he's working with.. 🤷🏻

Wheels were identical, just came with 255/275 tires instead of 245/265

[BigKutta]

Originally Posted by Moflow

Maybe I'm misunderstanding, but I'd expect the rears to be taller than the fronts. 35 percent of 265 will be a bigger number than 35 percent of 245 after all.

Yes, but no one has complained about rubbing with the tire size. I can't be the first M2C that has this wheel / tire size combo. Either way the difference in height is 3.5 mm (going from 245 to 255 in the front.

[Poochie]

Originally Posted by BigKutta

Yes, but no one has complained about rubbing with the tire size. I can't be the first M2C that has this wheel / tire size combo. Either way the difference in height is 3.5 mm (going from 245 to 255 in the front.

I hope you solve this mystery. I'm personally stumped, as that size tire should of cleared the fender well.

Regardless, smart and responsible choice in opting for bonafide winter rubbers, instead of just winging it with the stock summer tires.

I just SMH 🤦 when I hear folks ignorantly brag about getting by fine, in winter, on summer wheel. I'm like; 'Oh, so you must one of folks that Darwin refers to..'

[///AVM]

Originally Posted by Poochie

I hope you solve this mystery. I'm personally stumped, as that size tire should of cleared the fender well.

Regardless, smart and responsible choice in opting for bonafide winter rubbers, instead of just winging it with the stock summer tires.

I just SMH 🤦 when I hear folks ignorantly brag about getting by fine, in winter, on summer wheel. I'm like; 'Oh, so you must one of folks that Darwin refers to..'

Poochie

I feel like I just participated in psychiatric experiment and failed. . . I watched the entire 3:02 of your video . . . thinking the Jeep would magically grow snow shoes by the end.

///AVM

[Poochie]

Originally Posted by ///AVM

Poochie

I feel like I just participated in psychiatric experiment and failed. . . I watched the entire 3:02 of your video . . . thinking the Jeep would magically grow snow shoes by the end.

///AVM

LoL, yea, I gotta admit, the first time I saw that video, I expected a totally different outcome but I was more simple-minded then. Now, I know that summer tires turn into bricks, below 30 degree temperatures.

If it's not you're daily driver and you barely drive it in the winter, then you can chance it and leave on the summer tires but one should invest in season-appropriate rubber, if it's driven frequently in winter weather.

I mean, it's right there in the name; "summer" or "winter" tires, that's not there for style. But I guess if a person can't use the common sense approach, that a powerful, RWD, with already limited traction vehicle requires the proper tire, then they'll just have to learn the hard way.

[///AVM]

BigKutta

I just saw the scammer thread by VisualEcho and it made me wonder where you got your wheels?

///AVM

[BigKutta]

Originally Posted by ///AVM

BigKutta

I just saw the scammer thread by VisualEcho and it made me wonder where you got your wheels?

///AVM

Link? I got mine from a fellow M4 enthusiast. Local guy who I can't imagine is a scammer. What part would be the scam?

[BigKutta]

Originally Posted by Poochie

I hope you solve this mystery. I'm personally stumped, as that size tire should of cleared the fender well.

Regardless, smart and responsible choice in opting for bonafide winter rubbers, instead of just winging it with the stock summer tires.

I just SMH 🤦 when I hear folks ignorantly brag about getting by fine, in winter, on summer wheel. I'm like; 'Oh, so you must one of folks that Darwin refers to..'

Now you got me wanting to go out to a parking lot after the first snow/ice storm 🤣. Yeah no way am I driving the M2 with summers in the cold. The PSS give you enough slide on a hot summer day, so can't imagine what will happen when it's 28 degrees outside. Plus it was a great reason to get the 437s.

[///AVM]

Originally Posted by BigKutta

Link? I got mine from a fellow M4 enthusiast. Local guy who I can't imagine is a scammer. What part would be the scam?

Kutta

If you had bought from unknown seller (e.g., eBay), then I would question authenticity and size of the wheels . . . which could explain the fitment mystery.

Anyway, you seem to have bought from a trustworthy seller. . . wonder where he bought the wheels?

///AVM