[waldrops]

I won't be ready to upgrade suspension for at least another year, and I'd be lying if I thought my rears will last that long.

Is there a final end all answer to the largest/widest set of tires you can put on a stock wheel/suspension M2C without any issues/rubbing?

Sorry if this has been answered, but there are so many threads in here that I can't seem to locate an answer if there is one.

[HOT M]

https://support.apexraceparts.com/hc...-Fitment-Guide

[M2C Tokyo]

I would be interested in the answer to this question as well.
The guide that was helpfully posted above is great for those who want to change wheels, but like the OP I'm looking to see what options I have for the stock wheel/suspension setup.

I'm wondering if there is any value to taking off the stock Pilot Super Sports and putting on Pilot Sport 4 S in a slightly wider size, like 255 front/275 rear? Any improvement in day-to-day traction with such a setup?

[Got f1?]

Originally Posted by M2C Tokyo

I would be interested in the answer to this question as well.
The guide that was helpfully posted above is great for those who want to change wheels, but like the OP I'm looking to see what options I have for the stock wheel/suspension setup.

I'm wondering if there is any value to taking off the stock Pilot Super Sports and putting on Pilot Sport 4 S in a slightly wider size, like 255 front/275 rear? Any improvement in day-to-day traction with such a setup?

I can partially answer that question. I have PSS in front 265/35/19 and PS4 rears 275/35/19. Marginal difference. Not really noticeable IMO. This is on stock width wheels.

[DanG]

255/35/19 and 27 5/35/19 are the stock sizes on our wheels on M3s and M4s. Most people say that there is very little difference in performance between the two sizes. The biggest difference is changing from stock Michelins or Contis to Michelin PS4s.

[PLF69]

From my research it would be 275/30-19 front and 295/30-19 for the OG M2 but the M2C has different front fender liner so maybe only 265/30-19 Front.

This all depends on suspension/drop/mods of course.

Keep in mind everyone says that a tire over 255 on the 9inch front wheel will make the turn in feel less precise.. The best larger ''sporty/track'' sizes on stock wheels seem to me 255/35-19F and 285/35-19R. If you want to keep the good feeling and be the largest possible invest in 9.5inch front wheels and 10.5 inch rear wheels.

[M2C Tokyo]

Thanks so much everyone for the comments, information, and advice.

I certainly understand the benefits of wider wheels (and I may go down that route sometime in the future) but it's good to know the limitations of the stock wheels on the M2C as well.

So it sounds like the consensus is that 255 is the max front size for the stock M2C so as not to affect turn-in, and a 1 cm width increase over stock to 255/275 (or potentially 285 in the rear) probably won't provide a noticeable performance increase over stock.

Which means we are left with the change in compound from PSS to PS4S and the biggest likely benefit.
Any advice on whether there is truly enough appreciable benefit to switching to PS4S in stock or near-stock sizes?
I don't mind pulling new tires off of a new car and replacing them if it will provide a noticeable improvement.

Thanks again for the info everyone!

[omasou]

Originally Posted by M2C Tokyo

Thanks so much everyone for the comments, information, and advice.

I certainly understand the benefits of wider wheels (and I may go down that route sometime in the future) but it's good to know the limitations of the stock wheels on the M2C as well.

So it sounds like the consensus is that 255 is the max front size for the stock M2C so as not to affect turn-in, and a 1 cm width increase over stock to 255/275 (or potentially 285 in the rear) probably won't provide a noticeable performance increase over stock.

Which means we are left with the change in compound from PSS to PS4S and the biggest likely benefit.
Any advice on whether there is truly enough appreciable benefit to switching to PS4S in stock or near-stock sizes?
I don't mind pulling new tires off of a new car and replacing them if it will provide a noticeable improvement.

Thanks again for the info everyone!

I'm one of the few (may only person) who felt the PS4S had less grip than the Continentals that came on my M2. My M2C came w/PSS and when I goose the car it rips them off the road.

I would burn off the tires you have then install what you want. For reference my Continentals only lasted 12K miles.

[carcrazydoc]

So to summarize and please correct me if I am mistaken as I too am contemplating options for my as yet to be delivered 2020 M2C:

1) Can increase from 245/35/19 to 255/35/19 front and 265/35/19 to 275/35/19 or 285/30/19 on the rears with stock suspension and wheel sizes but may not notice a handling improvement.

2) If one wants, they can increase the fronts to 265/30/19 on 9.5" wide wheels and increase the rears to 295/30/19 on 10.5" wide wheels but obviously will need to purchase new wheels and possibly increase the camber on the front

3) Any recommended camber plates to accomplish the above or not needed?

4) The 30 mm increase in rear tire width probably will help with traction but the relatively smaller 20 mm increase in the front tire width may result in decreased turn-in response and more understeer if I recall from my E39 M5 days => so 265 and 285 better to maintain handling balance?

Appreciate the insights and guidance of those more knowledgeable on this forum.

[///AVM]

I apologize in advance for asking the same question that has already been asked, but I am not familiar with all the various terminology being used. I need things ‘dumbed down’ to my level.

2020 M2C. I like the vehicle stance on stock suspension, but feel the tires need a little more ‘poke.’ Not interested in spacers, and believe the best solution is simply wider tires.

(1) Are there a wider versions of the stock M2C competition tires that fit on stock wheels? More specifically, is it possible to get the same tire make and model as M2C stock, except simply wider?

Specs indicate the stock tires are front 245mm and rear 265mm width.

So, I am guesstimating that front 255 and rear 275 would be about right, maybe even 265 front and 285 rear?

(2) As suggested, I am sure there would be some degree of performance change/compromise with the larger tires, but I am not a ‘tracker,’ so most likely imperceptible to me.

What I do care about is whether the larger width tires would cause any fender rub? In such regard, what is the largest width one can get away with, front and rear, with no rub issues?

Thank you for the feedback in advance.

///AVM

[VisualEcho]

Originally Posted by ///AVM

I apologize in advance for asking the same question that has already been asked, but I am not familiar with all the various terminology being used. I need things ‘dumbed down’ to my level.

2020 M2C. I like the vehicle stance on stock suspension, but feel the tires need a little more ‘poke.’ Not interested in spacers, and believe the best solution is simply wider tires.

(1) Are there a wider versions of the stock M2C competition tires that fit on stock wheels? More specifically, is it possible to get the same tire make and model as M2C stock, except simply wider?

Specs indicate the stock tires are front 245mm and rear 265mm width.

So, I am guesstimating that front 255 and rear 275 would be about right, maybe even 265 front and 285 rear?

(2) As suggested, I am sure there would be some degree of performance change/compromise with the larger tires, but I am not a ‘tracker,’ so most likely imperceptible to me.

What I do care about is whether the larger width tires would cause any fender rub? In such regard, what is the largest width one can get away with, front and rear, with no rub issues?

Thank you for the feedback in advance.

///AVM

The thing you have to understand first is that, although all tire manufacturers use the same numbers, those numbers are measured from different places, so a 265 Conti 3 is going to have different specs from a 265 Toyo 888R, and so on. So it's not really the basic numbers you're wanting to look at, it's the specs.

Tirerack is perfect for this, as they give you pretty much everything you need to make a great call on what will fit and what won't. To some extent all normal tires (non-comp tires like the 888R) will run very close, so you can "usually" assume they will fit nearly the same, but not always, so using tirerack here will really help you make a great decision.

The numbers you're wanting to look at are:

Overall Diameter
Tread Width (shoulder to shoulder)
Stock rake

For example, the stock MPSS tires have the following specs:

245/35/19 - 25.8 OD - 8.8 TW
265/35/19 - 26.3 OD - 9.4 TW
Stock rake is then .5 taller in the rear

So let's say you wanted to play it safe and changed to a 255/275. This is what it looks like:

255/35/19 - 26.0 OD - 9.2 TW
275/35/19 - 26.6 OD - 9.6 TW
Rake is .6 taller in the rear

So you've added .4 width to the front tire, .2 width to the rear tire, and evened the car out front-to-back by .1.

This is an easy fit.

So let's take it further.

Look at what it does when you go up just a bit now...

265/35/19 - 26.3 - 9.4 TW
285/30/19 - 25.8 - 10.4 TW

Notice that no 35 series 285 is available in the MPSS, so if you chose that tire, going with the 30 series, your front tire would be taller than your rear, resulting in negative rake.

This is why you don't just assume that going up a bit in the basic sizes will give you a good result, always look at the details.

The first thing you should always do is figure out the tire you want, then look at the specs. Just try to stay as close to stock ratio's as possible, meaning don't go up to tall, or remove the rake.

[///AVM]

Originally Posted by VisualEcho

The thing you have to understand first is that, although all tire manufacturers use the same numbers . . . The first thing you should always do is figure out the tire you want, then look at the specs. Just try to stay as close to stock ratio's as possible, meaning don't go up to tall, or remove the rake.

Visual

What a great response - thank you!

Aside from proper fit (e.g., no fender rub), the other major factor in my consideration was that the tires remained uniform from front to rear in height. Your explanation was excellent.

I decided I wanted to go with Michelin PS4S and contacted TireRack, as per forum recommendation. Their response was delayed, and I probed the forum further while in wait.

I did hear back from TireRack about two days ago, and spoke to tire specialist over the phone. In short, he told me the only PS4S tires that would fit my M2C on stock wheels and suspension were 255/35ZR19 (front) and 275/35ZR19 (rear).

I am not certain if this is in keeping with the information and experiences of others on this forum with 2020 M2C on stock wheels and suspension, but that was the information I received from tire specialist at TireRack.

Thank you again Visual

///AVM

[VisualEcho]

Originally Posted by ///AVM

Visual

What a great response - thank you!

Aside from proper fit (e.g., no fender rub), the other major factor in my consideration was that the tires remained uniform from front to rear in height. Your explanation was excellent.

I decided I wanted to go with Michelin PS4S and contacted TireRack, as per forum recommendation. Their response was delayed, and I probed the forum further while in wait.

I did hear back from TireRack about two days ago, and spoke to tire specialist over the phone. In short, he told me the only PS4S tires that would fit my M2C on stock wheels and suspension were 255/35ZR19 (front) and 275/35ZR19 (rear).

I am not certain if this is in keeping with the information and experiences of others on this forum with 2020 M2C on stock wheels and suspension, but that was the information I received from tire specialist at TireRack.

Thank you again Visual

///AVM

Yes, common sizes for those tires, and will fit well. Glad you got it worked out.

[///M Houbi]

Originally Posted by ///AVM

Visual

What a great response - thank you!

Aside from proper fit (e.g., no fender rub), the other major factor in my consideration was that the tires remained uniform from front to rear in height. Your explanation was excellent.

I decided I wanted to go with Michelin PS4S and contacted TireRack, as per forum recommendation. Their response was delayed, and I probed the forum further while in wait.

I did hear back from TireRack about two days ago, and spoke to tire specialist over the phone. In short, he told me the only PS4S tires that would fit my M2C on stock wheels and suspension were 255/35ZR19 (front) and 275/35ZR19 (rear).

I am not certain if this is in keeping with the information and experiences of others on this forum with 2020 M2C on stock wheels and suspension, but that was the information I received from tire specialist at TireRack.

Thank you again Visual

///AVM

Why wouldn't the stock 245/35 and 265/35 fit as PS4S? Or do I get this completely wrong?

[///AVM]

Originally Posted by ///M Houbi

Why wouldn't the stock 245/35 and 265/35 fit as PS4S? Or do I get this completely wrong?

Houbi

Stock sizes you indicate will fit.

The context of the above posts was INCREASED tires sizes that will fit.

Hope that clears things up.

///AVM

[ssabripo]

295/30R19 in the rears works fine on stock M2C.

read this thread here:
https://f87.bimmerpost.com/forums/sh....php?t=1608878

[TheRealOrosie]

Originally Posted by VisualEcho

The thing you have to understand first is that, although all tire manufacturers use the same numbers, those numbers are measured from different places, so a 265 Conti 3 is going to have different specs from a 265 Toyo 888R, and so on. So it's not really the basic numbers you're wanting to look at, it's the specs.

Tirerack is perfect for this, as they give you pretty much everything you need to make a great call on what will fit and what won't. To some extent all normal tires (non-comp tires like the 888R) will run very close, so you can "usually" assume they will fit nearly the same, but not always, so using tirerack here will really help you make a great decision.

The numbers you're wanting to look at are:

Overall Diameter
Tread Width (shoulder to shoulder)
Stock rake

For example, the stock MPSS tires have the following specs:

245/35/19 - 25.8 OD - 8.8 TW
265/35/19 - 26.3 OD - 9.4 TW
Stock rake is then .6 taller in the rear

So let's say you wanted to play it safe and changed to a 255/275. This is what it looks like:

255/35/19 - 26.0 OD - 9.2 TW
275/35/19 - 26.6 OD - 9.6 TW
Rake is .4 taller in the rear

So you've added .4 width to the front tire, .2 width to the rear tire, and evened the car out front-to-back by .2.

This is an easy fit.

So let's take it further.

Look at what it does when you go up just a bit now...

265/35/19 - 26.3 - 9.4 TW
285/30/19 - 25.8 - 10.4 TW

Notice that no 35 series 285 is available in the MPSS, so if you chose that tire, going with the 30 series, your front tire would be taller than your rear, resulting in negative rake.

This is why you don't just assume that going up a bit in the basic sizes will give you a good result, always look at the details.

The first thing you should always do is figure out the tire you want, then look at the specs. Just try to stay as close to stock ratio's as possible, meaning don't go up to tall, or remove the rake.

So it sounds like 265/30/19 front and 295/30/19 Michelin PS4 tires would work on stock wheels, and maintain proper rake, and no rubbing?

[PLF69]

Originally Posted by TheRealOrosie

So it sounds like 265/30/19 front and 295/30/19 Michelin PS4 tires would work on stock wheels, and maintain proper rake, and no rubbing?

I also came to that conclusion when researching but decided against it because I track often and these size on stock wheel could provide a more sloppy turn-in feeling.

[VisualEcho]

Originally Posted by TheRealOrosie

So it sounds like 265/30/19 front and 295/30/19 Michelin PS4 tires would work on stock wheels, and maintain proper rake, and no rubbing?

I believe so.

I think Dinan hits it perfect with 265/30 and 285/30 using the Corsa because it's a bit skinnier, being only 10.4" wide in the rear compared to the PS4's 11" wide. I also prefer the slightly shorter Corsa. It's just too bad it's a terrible tire IMO, and not all tires are made in every size.

[MKovac]

To assist in this data set I just test fit the following on my 2020 M2:

Rim: 20' 666M
Front: 275/30/20
Rear: 305/30/20

The rears look like they would been OK, but with alot of bulge. Truthfully I don't like the look and I was a bit concerned when the car squatted it MAY hit on the fender at about 3:00pm if you were looking at the rim head on. I was jumping up and down on the trunk and it didn't seem to hit though. The fronts rubbed on the inner fender liner at full lock so that was a no go. FYI all rubber is like 70-50% worn so it would of been worse on the front if they were new. I am going to downgrade back to the 285 rear/265 front settup as I know that for sure fits.

Hope this helps the community...

[Karmic Man]

F: 265/30 19 (rim: 9 inch, offset 23)
R: 285/30 19 (rim: 10 inch, offset 34)

Tyre: Bridgestone S007A

Rub: None
Turn in: Not sloppy
Grip (F): Definitely felt the extra grip from turn in to hitting the apex
Grip (R): Wheel spin in first is now minimal
Comfort: circa 10% harsher, due to the stiffer sidewall of the S007A and the 30 profile

With the smaller diameter of the rear tyres (285/30 vs 265/35), the overall gearing is reduced by 2.3%, this translates to more thrust in each gear and now the low end response (<3k rpm) is akin to an NA engine. Definitely a big plus!

The interesting thing is more steering lock is now required when travelling through corners after apex with my usual turn in point. Guess I just have to find a new turn in point for all the corners.

[razvannwaa]

ok,guys do u think if i fitted 265/35/19 michelin super sport front,and 275/35/19 cup2 will be a problem?