275 40 19 has anyone ran this??

[F36Baker]

I can't find it anywhere.. has anyone ran this set up? On the tears of an M4?

[ntg44]

Why would you want this? Would totally throw off the speedo on the car. 19s have the best tire selection out of any size, just stick with the 35 side wall.

[F36Baker]

Originally Posted by ntg44

Why would you want this? Would totally throw off the speedo on the car. 19s have the best tire selection out of any size, just stick with the 35 side wall.

I don't want wheel gap.

I also don't want to change my setup for suspension that I put on there.

[ntg44]

Originally Posted by F36Baker

I don't want wheel gap.

I also don't want to change my setup for suspension that I put on there.

So instead of lowering the rear suspension 5-10mm (the proper way to address your issue), you're going to raise the rear with a taller tire, throw off your speedo, make acceleration and handling worse, and throw out all the great tire options available with a 35 sidewall, for wheel gap? Seems like 1 step forward, 2 steps back to me, but you didn't ask for my opinion, so I'll respect that and leave it to someone else to find the tire you're looking for.

Good luck.

[F36Baker]

Originally Posted by ntg44

So instead of lowering the rear suspension 5-10mm (the proper way to address your issue), you're going to raise the rear with a taller tire, throw off your speedo, make acceleration and handling worse, and throw out all the great tire options available with a 35 sidewall, for wheel gap? Seems like 1 step forward, 2 steps back to me, but you didn't ask for my opinion, so I'll respect that and leave it to someone else to find the tire you're looking for.

Good luck.

Your right.. I didn't ask for your opinion. I asked if anyone had ran it..

[F36Baker]

Originally Posted by ntg44

So instead of lowering the rear suspension 5-10mm (the proper way to address your issue), you're going to raise the rear with a taller tire, throw off your speedo, make acceleration and handling worse, and throw out all the great tire options available with a 35 sidewall, for wheel gap? Seems like 1 step forward, 2 steps back to me, but you didn't ask for my opinion, so I'll respect that and leave it to someone else to find the tire you're looking for.

Good luck.

I realize I'm poking the bear at this point. But 2mph.. for real bro?

[ntg44]

Originally Posted by F36Baker

I realize I'm poking the best at this point. But 2mph.. for real bro?

Depends on which tire and speed. But really, if all those reasons I listed why going that route is a bad idea don't matter to you, then I'm not the one to help. And that's all I was trying to do.

But like I said, I respect your decision to pursue this further, and I'm not trying to get in your way. I'm just not the person who can help. You do you.

[jd__m4]

Your other thread talks about ordering wheels and then asking if they fit the M4 (which, they're not an ideal size/offset, but it's too late now!). Now you're looking at wonky tire sizes.

There's literally pages upon pages of discussions here about wheel sizes, tire sizes, offsets, etc. You should've read those before choosing ill-fitting wheel and tire sizes.

[F36Baker]

Originally Posted by eyeamgrewt

Your other thread talks about ordering wheels and then asking if they fit the M4 (which, they're not an ideal size/offset, but it's too late now!). Now you're looking at wonky tire sizes.

There's literally pages upon pages of discussions here about wheel sizes, tire sizes, offsets, etc. You should've read those before choosing ill-fitting wheel and tire sizes.

Ya... the annoying thing about this forum is when you ask a question people give you an opinion instead of an answer. On my other post I asked if they could fit, not what are your thoughts on this offset? And the answer is yes they can. With the right spacer in front they will look perfect.

On this post I asked if anyone had ran this tire set up. I didn't ask what people thought of this setup.

I want a really chunky look. And I'll bet you you can't find a single post about 275/40/19 tires on an f80/f82.. it doesn't exist...

So all of those "post" your referring to are opinions.. of the right tire size and offset. None of which answered my question or I would have never posted.

Guys am I trippen? Tell me if I am. But I was looking for answers.. not opinions.

[jd__m4]

Originally Posted by F36Baker

I want a really chunky look. And I'll bet you you can't find a single post about 275/40/19 tires on an f80/f82.. it doesn't exist...

Because no one will recommend this, it's not ideal. Neither is your wheel offset and width. You'd have been better off going with a wider wheel with optimal offsets (both front and rear), so you can squeeze in a bigger tire in a 35 profile.

But your mind was made up before you created these threads, so we're all wasting our time posting here.

Good luck!

[AlterZgo]

I went from stock 275-35-19 to 285-35-19 in the rear and it definitely filled out the wheel wells better and also improved traction. When matched w/ the 265-35-19 up front, the car's front/rear balance remained identical to stock and I also had the bonus of reducing some of the front wheel well gap as well.

[Bayarea 530i g30]

Originally Posted by F36Baker

I can't find it anywhere.. has anyone ran this set up? On the tears of an M4?

I just did this. Only because I ordered on accident. InsteAd of 275 35 r19 I got 274 40 r19 . Looks pretty good what y'all think ?

[MineralWhiteF80]

I wont give you an opinion but here are some facts:

Will it work (fit)? Yes (at stock ride height), but the M3 and M4 really prefer a tire less than 27.4" in diameter when it comes to rubbing the fender liner, especially when even slightly lowered. The 275/40 is 27.7" and quite larger than all tires that pretty much everyone runs normally. For example, a 305/35-19 is 27.4" and smaller than the 274/40. You may find the tires will look like they are bordering on an SUV tire or a beefy family sedan tire and not a performance sports car.

[EDIT] As far as traction control, you are increasing rear tire diameter by 4.1% so your traction control may have an absolute fit when driving spiritedly. I dont know what your front tire size is, but really any normal front tire you might have will throw front to rear wheel speed off. That would be a 6.5% difference in a 255/35-19 and a 275/40-19 rear, which is over almost triple the amount of difference it should be!

A 275/40-19 is 1.3 inches in diameter larger than a 275/35-19, meaning your wheel gap from tire to fender will decrease by 0.65" (roughly 5/8"), and lift the entire car up the same 5/8" in the rear and will help accomplish your desire for reduced fender gap at the expense of a looser ride since there will be more sidewall rollover. The car wont handle as nicely but will be slightly more comfortable.

A 275/40-19 increases actual ground speed by 4.07 mph at 100 mph. But I dont know exactly where the car pulls wheel speed from to tell the speedometer what to display. Typically BMW speedometers read roughly 7% faster than actual ground speed. So at 100 mph, you are really traveling maybe 93 or 94 mph in a completely stock m3/m4. A 275/40 tire will actually help to correct your actual ground speed versus indicated speed and make your speedometer more accurate, so no problem there. I've tested my car and the speedometer reads 6% faster than actual at 100 mph on stock 19" M437 wheels and tires.

I've attached a picture of my car with 285/35-19 tire that has an overall diameter of 26.9 inches. The 275/40 will add another 0.4" of tire to the top and bottom of how my rear tire looks. Keep in my car is lowered quite a bit in the rear:

[Marcik1]

I've been searching for this too and finally try it myself.

255/40R19 + 275/40/R19 - no rubbing, works very well.

You can feel more sidewall movement and car became more comfortable. It is what i've been looking for winter. It works better on snow/icy road.

Of course on summer tire it doesn't make much sense but if you try to have some more grip in winter condition it works.

(Sorry for pictures quality)