[Rossodio]

Man, there has been a lot of talk about the sizes/configurations of tires and wheels with the latest generation of 3's. I am having a 2021 M340i built. I want 19 inch rims. I want the wheels to be solid jet black and OEM BMW. I don't want the 20 inch uber expensive "star" rims. I don't want to have to pay extra and increase risk of need for repair by purchasing the performance package with extra radiator/larger brake performance option with the non-run flats. I do, however, want to have performance tires on the car.

The only way to accommodate all of this as I see it aside from purchasing new wheels after I get the car - which I won't do - is to get the 791M 19 inch jet black wheels with all season tires in a square setup from the factory (would prefer staggered, but I would actually be willing to sacrifice this as I'm not tracking the car and will have this for me as a daily driver that I would drive very enthusiastically, at times at very high rates of speed ). I would then swap the stock all season tires out for max performance summer tires like Michelin Pilot Sport 4S or something along those lines, weather allowing, and during wintertime in Greenville, SC, where there are times where it's well below 40 degrees most of the day for a period, would have to switch those max performance summer tires out for a high end alternative that would suit the weather (looking for recs on this; the stock all season tires from what I hear aren't that great which is what I would expect).

I have read that at least in some other model years that if you order the car from the factory with all season tires on it that the top speed will effectively be electronically limited significantly compared with if the car comes out of the factory with performance tires on it. There may also be some other performance tweaks programmed in the car as a result that would effectively neuter it. Is this true still? If so, is there a way around this? When I have the performance tires installed at the dealership could they take that governor, for lack of a better term, off, and retune the car as if it had performance tires on it to begin with?

I wish it weren't such a hassle to get those wheels without limiting the car by the tires and possibly by the associated performance changes.

[TTG]

The car will come governed whatever the speed rating is on the installed tires....nothing else will be de-tuned performance wise.

In your case I would get the 791s with all seasons or get a different color of 791s with the tires you want and get them powder coated.


We are the in the US, doubt that your car will ever go over 130MPH which would be the min speed the tires will be governed regardless.

[Rossodio]

Originally Posted by TTG

The car will come governed whatever the speed rating is on the installed tires....nothing else will be de-tuned performance wise.

In your case I would get the 791s with all seasons or get a different color of 791s with the tires you want and get them powder coated.


We are the in the US, doubt that your car will ever go over 130MPH which would be the min speed the tires will be governed regardless.

Do we have any idea what the stock all season tires that come in factory builds would be? This would be built at the Munich plant for what it's worth; I had to flex the build there due to some options I selected.

Also, if I purchase aftermarket tires with a higher speed rating than the stock tires that go on, will they bump the governor upward to match the new speed rating (assuming it is not over 130MPH)?

[obscurehero]

If you get all seasons you don't get "840 Top Speed Limiter" so you'll be limited to 130 instead of 155 or thereabouts.

[Rossodio]

Originally Posted by obscurehero

If you get all seasons you don't get "840 Top Speed Limiter" so you'll be limited to 130 instead of 155 or thereabouts.

What if I buy aftermarket max performance summer tires and have them installed by the dealer? Would they apply the 840 top speed limiter when changing the tires out?

[obscurehero]

Originally Posted by Rossodio

What if I buy aftermarket max performance summer tires and have them installed by the dealer? Would they apply the 840 top speed limiter when changing the tires out?

Great question. I'd ask your dealer. I have no idea.

[50M]

Originally Posted by obscurehero

Great question. I'd ask your dealer. I have no idea.

In the M340 iDrive7, there is a digital tire setting where you can change your tire type, sizes, load and speed rating.

If you go to your dealership, the demo M340 will have this.

Ask the BMW genius onsite to verify if this allows for the car's governor to be increased from 130 to 150 mph.

But it's true - all season square does governor limit you to 130 mph

[PortimaoM340NYC]

This is stupid they couldn't put high speed rated tires for all wheel drive vehicles. it's not like they dont make it. my Infiniti now is and and goes past 145mph.i think I will complain on the pick up date of my vehicle why 130mph only

[xlover]

Originally Posted by Rossodio

What if I buy aftermarket max performance summer tires and have them installed by the dealer? Would they apply the 840 top speed limiter when changing the tires out?

Hard no, the only way to adjust speed limiter is aftermarket coding.

It sounds like what you really want is ZTK, I think in general the fears around the extra cooler are massively overblown, yes a couple previous gen m owners had bad experiences but bmw wouldn't put a part in that was a true liability. I almost ordered ZTK myself just for the bigger brakes but I plan to run high performance all seasons year round so I'm not gonna make the most of the pilot sport 4s tires.

[MBM340]

Originally Posted by Rossodio

Do we have any idea what the stock all season tires that come in factory builds would be? This would be built at the Munich plant for what it's worth; I had to flex the build there due to some options I selected.

Also, if I purchase aftermarket tires with a higher speed rating than the stock tires that go on, will they bump the governor upward to match the new speed rating (assuming it is not over 130MPH)?

How about this for you. I just purchased a brand new 2021 and the tires that came on it are 245/40/19 Bridgestone Turanza 100 A. Catch this, I drive the car for the first time a little bit enthusiastically and it is NOT inspiring confidence. Now I wanted RWD and love it, but I get out and take a closer look at the skins and they are.....wait for it. GRAND TOURING H Rated.......WTF? Who puts Grand Touring tires on an M340???

What is BMW thinking?!? Yes they are runflat (all square) and yes all season as advertised on the window sticker, but now I am going to have to buy UHP All Season's in the Spring just because well, these tires were designed for a minivan.

And yes I know caviat emptor, but sheesh, I can deal with any brand but at least give me V or W rated tires on a bloody M Performance machine.

[ultrared93]

Originally Posted by MBM340

How about this for you. I just purchased a brand new 2021 and the tires that came on it are 245/40/19 Bridgestone Turanza 100 A. Catch this, I drive the car for the first time a little bit enthusiastically and it is NOT inspiring confidence. Now I wanted RWD and love it, but I get out and take a closer look at the skins and they are.....wait for it. GRAND TOURING H Rated.......WTF? Who puts Grand Touring tires on an M340???

What is BMW thinking?!? Yes they are runflat (all square) and yes all season as advertised on the window sticker, but now I am going to have to buy UHP All Season's in the Spring just because well, these tires were designed for a minivan.

And yes I know caviat emptor, but sheesh, I can deal with any brand but at least give me V or W rated tires on a bloody M Performance machine.

I fear my soon to arrive M340 will be similarly equipped. Based on the region I live in, my desire to drive year round and a reluctance to have two sets of wheels, I too wanted UHP all season tires, preferably non-rft. I also would have preferred a staggered rather than square setup.

However, none of that is do-able with the current available configurations. So my dealer has agreed to swap out the factory tires for ones I provide upon delivery of my car. Then, of course I will have to sell the originals and take a $ beating doing so. I actually think I will use the factory tires for the rest of the winter and until Michelin comes out with appropriate sizes in the AS 4.

[MBM340]

[QUOTE=ultrared93;27002903]I fear my soon to arrive M340 will be similarly equipped. Based on the region I live in, my desire to drive year round and a reluctance to have two sets of wheels, I too wanted UHP all season tires, preferably non-rft. I also would have preferred a staggered rather than square setup.

Love that idea. I am keeping mine on from the factory until Spring. Winter doesn't matter anyway. If the snow ever does get deep here I will just take my truck, but these tires should (keyword) do ok for the winter, but I really don't want two sets either. I have too many cars with sets of rims all over. I can't handle another set.

[Ghozthunter]

Mine gives me the option to change the type of tire in settings. Kinda scared to change it though lol

[xlover]

[QUOTE=MBM340;27003758]

Originally Posted by ultrared93

I fear my soon to arrive M340 will be similarly equipped. Based on the region I live in, my desire to drive year round and a reluctance to have two sets of wheels, I too wanted UHP all season tires, preferably non-rft. I also would have preferred a staggered rather than square setup.

Love that idea. I am keeping mine on from the factory until Spring. Winter doesn't matter anyway. If the snow ever does get deep here I will just take my truck, but these tires should (keyword) do ok for the winter, but I really don't want two sets either. I have too many cars with sets of rims all over. I can't handle another set.

I just got my 2021 M340 and I did this same thing for my 440 before. Order the factory staggered setup to get the staggered width rims, then first week put on uhp all season (pilot sport 3plus), save the original tires for lease turn in.

Sorry to those who didn't read the order guides, the pedestrian square all seasons are there for off the lot buyers who "just want the faster one" and will never know the difference. Bmw assumes that performance minded buyers will understand managing their tires and that's why all the staggered setups come from the factory as summer only.

[MBM340]

[QUOTE=xlover;27010569]

Originally Posted by MBM340

I just got my 2021 M340 and I did this same thing for my 440 before. Order the factory staggered setup to get the staggered width rims, then first week put on uhp all season (pilot sport 3plus), save the original tires for lease turn in.

Sorry to those who didn't read the order guides, the pedestrian square all seasons are there for off the lot buyers who "just want the faster one" and will never know the difference. Bmw assumes that performance minded buyers will understand managing their tires and that's why all the staggered setups come from the factory as summer only.

That is fine if you order you car but if you get it off the lot like I did it will cost you to get the other rims, but I may do it at some point anyway. I just bought a BMW spare doughnut tire off of another Bimmerpost guy so I can flip to UHP all season skins in the Spring.

[MBM340]

Originally Posted by Ghozthunter

Mine gives me the option to change the type of tire in settings. Kinda scared to change it though lol

Where is that option?

[xlover]

Originally Posted by Ghozthunter

Mine gives me the option to change the type of tire in settings. Kinda scared to change it though lol

All that does is change the recommended tire pressure lol... have at it

[Ghozthunter]

Here is what my screen looks like. If I change those all it will do is recommend tire pressure? Lol