[thatBimmerBloke]

I've been trying to find answers about fitment but nothing seems clear/definitive.

I'm running stock 400Ms, 18x8 ET34 225/45 on my 2016 F32 xDrive Coupe and I'm getting a good deal on ZITO 19 inch wheels but I'm not sure if they will fit without any issue on stock xDrive suspension, right now I don't have any plans of lowering my car so I just need opinions on stock suspension fitment of these wheels.

Tirerack approves 19x10 ET37 for rear and 19x9 ET32 for the front and the wheels in question have 3mm more offset.

Willtheyfit.com shows rear wheels will be 31.4mm close to suspension struts and poke out 19.4mm, front wheels will be 13.7mm closer to the suspension and poke out 11.7mm.

Apart from fitment what would be ideal tire size making the wheels+tires equal to stock diameter?

And will the handling/performance/speed suffer because of this setup? These are flow-formed so I believe might be equal to the weight of my stock cast wheels even being bigger in size.

Any suggestions will be highly appreciated.

Thank You.

[alohasurftoad]

oem bmw 437m are of similar specs, the only difference being your fronts are 6mm further in.

https://f30.bimmerpost.com/forums/sh...+wheels&page=9 this thread has different tire sizes on the oem 437M, so you can get an idea of what sizes to run.

for closest to stock diameter 235/40/19(stretched) front, 265/35/19(lightly stretched) rear. this is what i'd put on.

245/40/19 front, 275/35/19 rear. more gap fill, better ride and impact protection. however, taller(gearing) heavier tires will slow you a little in theory but i'm not sure your butt dyno will feel the difference.

255/35/19, 265/35/19 is at the limit diameter difference for x-drive. higher possibility of transfer case issues.

[thatBimmerBloke]

Originally Posted by alohasurftoad

oem bmw 437m are of similar specs, the only difference being your fronts are 6mm further in.

https://f30.bimmerpost.com/forums/sh...+wheels&page=9 this thread has different tire sizes on the oem 437M, so you can get an idea of what sizes to run.

for closest to stock diameter 235/40/19(stretched) front, 265/35/19(lightly stretched) rear. this is what i'd put on.

245/40/19 front, 275/35/19 rear. more gap fill, better ride and impact protection. however, taller(gearing) heavier tires will slow you a little in theory but i'm not sure your butt dyno will feel the difference.

255/35/19, 265/35/19 is at the limit diameter difference for x-drive. higher possibility of transfer case issues.

Thanks man, but everywhere I see people running a setup like this or OEM 437 have their cars lowered, without that it pokes out too much? Also will 31mm close to suspension at the rear be an issue for f32 xDrive?
I even read some xDrive issues with the staggered setup

[alohasurftoad]

The Zito specs you plan are 19x9 +32, 19x10+37? The rear will not have a problem with inside clearance, but it will poke slightly unlowered, as you suspect.

BMW offers 225/255 stagger on x-drive cars as part of package or standalone option and many members here are have staggered on their x-drives. If the front and rear tire diameters are close to equal as possible, there won't be a problem.

Instead of the Zito, I'd look for 19x8.5 +(30-35), 19x9.5 +(40-45) with 235/40/19, 265/35/19 or OEM size 225/40/19, 255/35/19.

[thatBimmerBloke]

Originally Posted by alohasurftoad

The Zito specs you plan are 19x9 +32, 19x10+37? The rear will not have a problem with inside clearance, but it will poke slightly unlowered, as you suspect.

BMW offers 225/255 stagger on x-drive cars as part of package or standalone option and many members here are have staggered on their x-drives. If the front and rear tire diameters are close to equal as possible, there won't be a problem.

Instead of the Zito, I'd look for 19x8.5 +(30-35), 19x9.5 +(40-45) with 235/40/19, 265/35/19 or OEM size 225/40/19, 255/35/19.

Thanks buddy, no the zittos are 19x9 et35 up front and 19x10 et40 at the rear. I'll stick to your OEM suggestions, 8.5 at front and 8.5 or 9 for the rear. Will I have better handling because of more grip or the OEM square setup of 8" is better for handling/cornering on an xdrive?

[alohasurftoad]

https://f30.bimmerpost.com/forums/sh...=vmr+v803+mp4s

https://f30.bimmerpost.com/forums/sh...ht=bimmerguy91

generally square is better than staggered for handling, but not 225 square as the tires are just too narrow. it has to be 245 or 255 square.

a mild tire width stagger with the right offsets(front track width wider than rear track width), may arguably handle better, but we're talking race driver on track.

square you can rotate all directions, best for x-drive. but the wheels(usually 4xfronts) have little or no concavity.

the rear wheel of the staggered setup usually has a deeper concave, which looks more desireable.

[thatBimmerBloke]

Originally Posted by alohasurftoad

https://f30.bimmerpost.com/forums/sh...=vmr+v803+mp4s

https://f30.bimmerpost.com/forums/sh...ht=bimmerguy91

generally square is better than staggered for handling, but not 225 square as the tires are just too narrow. it has to be 245 or 255 square.

a mild tire width stagger with the right offsets(front track width wider than rear track width), may arguably handle better, but we're talking race driver on track.

square you can rotate all directions, best for x-drive. but the wheels(usually 4xfronts) have little or no concavity.

the rear wheel of the staggered setup usually has a deeper concave, which looks more desireable.

So for all around 18x8" wheels front 245/40 and rear 255/40 will be fine?
Or, for front 18x8.5 245.40 and rear 18x9 255/40?

Is there a place I can find all compatible tires for a certain diameter and width of a wheel for my car or any rule to follow about how wide I can go for tires on a certain width of a wheel?

[alohasurftoad]

Originally Posted by thatBimmerBloke

So for all around 18x8" wheels front 245/40 and rear 255/40 will be fine? Or, for front 18x8.5 245.40 and rear 18x9 255/40? Is there a place I can find all compatible tires for a certain diameter and width of a wheel for my car or any rule to follow about how wide I can go for tires on a certain width of a wheel?

on TR, for any given tire, if you look at it's specs, one column has the rim width range and another column has the width that they put the tire on to give you it's spec...diameter, tread width, section width, and so on.

255/40/18 is too wide for 18x8. for 18x8 square 245/40/18 is good however it will make the wheel gaps slightly bigger on your x-drive, so i'd recommend 235/45/18 square. not as wide but a little taller to fill your gaps some. see FaRKle!'s car in post #29. https://f30.bimmerpost.com/forums/sh...1369473&page=2

[thatBimmerBloke]

Originally Posted by alohasurftoad

on TR, for any given tire, if you look at it's specs, one column has the rim width range and another column has the width that they put the tire on to give you it's spec...diameter, tread width, section width, and so on.

255/40/18 is too wide for 18x8. for 18x8 square 245/40/18 is good however it will make the wheel gaps slightly bigger on your x-drive, so i'd recommend 235/45/18 square. not as wide but a little taller to fill your gaps some. see FaRKle!'s car in post #29. https://f30.bimmerpost.com/forums/sh...1369473&page=2

I'm getting a good deal on z4 (326M) wheels. 19x8 ET29 and 19x9 ET40. As the wheels are from z4 which is a considerably lighter car will it be able to support F32 weight? As per willtheyfit.com these will also improve the stance and will be like 5mm and 6.7mm spacers for front and rear, however, the rear will be 18.7mm closer to the struts but that should be ok I believe?
Any suggestions, any chance of xDrive issues? Pardon my questions, I'm a noob when it comes to wheels

[alohasurftoad]

Originally Posted by thatBimmerBloke

I'm getting a good deal on z4 (326M) wheels. 19x8 ET29 and 19x9 ET40. As the wheels are from z4 which is a considerably lighter car will it be able to support F32 weight? As per willtheyfit.com these will also improve the stance and will be like 5mm and 6.7mm spacers for front and rear, however, the rear will be 18.7mm closer to the struts but that should be ok I believe? Any suggestions, any chance of xDrive issues? Pardon my questions, I'm a noob when it comes to wheels

it's the diameter difference between front and rear tire size, not wheel size, that may affect x-drive.

those wheels will fit fine. tire size should be 225/40/19 and 255/35/19

[alohasurftoad]

Bolt pattern is 5x120,?

[thatBimmerBloke]

Originally Posted by alohasurftoad

Bolt pattern is 5x120,?

Yes! These are 326M wheels from a Z4. I've asked the guy to send me more pictures, if they look fine then I'll go check them out in person. He's selling the set for around $500. 30 minute drive from me will probably put Michellin Pilot Sport 4S tires on them and put blizzak ws80 on my current 400M wheels. I have the shitty 225/45 continental runflats right now.

[alohasurftoad]

Sounds good. I like the fitment and tire sizes much better for what you're seeking.

[thatBimmerBloke]

Originally Posted by alohasurftoad

Sounds good. I like the fitment and tire sizes much better for what you're seeking.

One of the wheels was cracked and another one was in a bad shape too. So back to square one

Thinking if I should go with 235/45/18 on my current 400M wheels or get a new set of aftermarket wheels.

Will the handling be much better with a staggered setup of 225/40/19 and 255/35/19 vs 235/45/18 all around?

I don't want to spend more than a grand or $1200 on a set of wheels, any recommendations in that range? I was looking at Enkei, Flow One(https://www.tirerack.com/wheels/Whee...Silver+Painted) and Konig, they seem to have some good designs and are flow formed, lighter than my OEM wheels. I won't be tracking it but I do push my car most of the time.

[alohasurftoad]

Originally Posted by thatBimmerBloke

Thinking if I should go with 235/45/18 on my current 400M wheels or get a new set of aftermarket wheels.

Will the handling be much better with a staggered setup of 225/40/19 and 255/35/19 vs 235/45/18 all around?

I don't want to spend more than a grand or $1200 on a set of wheels, any recommendations in that range?

if you run a really good 235/45/18 such as MPS4S, Pirelli P Zero PZ4 or Firestone Indy 500(if you don't want to pay so much), you'd be pleasantly surprised by how much better the car performs and drives with good tires.

between 225/255-19 or 235/45/18 square, idk tbh.

i have some other flow formed recommendations in the $1200 range. what kind of wheel face do you like? you may also consider a square setup 19x8.5 with 235/40/19, 245/35/19 or 255/35/19 square or even wider 18" in staggered or square set ups.

[thatBimmerBloke]

Originally Posted by alohasurftoad

if you run a really good 235/45/18 such as MPS4S, Pirelli P Zero PZ4 or Firestone Indy 500(if you don't want to pay so much), you'd be pleasantly surprised by how much better the car performs and drives with good tires.

between 225/255-19 or 235/45/18 square, idk tbh.

i have some other flow formed recommendations in the $1200 range. what kind of wheel face do you like?

Something like https://www.tirerack.com/wheels/Whee...Silver+Painted
or https://www.tirerack.com/wheels/Whee...int&tab=wheels
Flow One is cheap(around 1k-$1100 for 19" set) but barely any reviews anywhere.

[alohasurftoad]

yeah. flow one and some others are made in china, which i don't necessarily have a problem with since some of the known brands manufacture out of china.

for reasonably priced rotary forged i like, tsw, beyern, enkei, 305Forged, some avant garde, sportline, VMR, apex(if on sale or group buy).

amazon offers some wheels above with free ship in most cases. tires also. i also check out m0db@rg@ins(spelled incorrectly to post)

[thatBimmerBloke]

Originally Posted by alohasurftoad

yeah. flow one and some others are made in china, which i don't necessarily have a problem with since some of the known brands manufacture out of china.

for reasonably priced rotary forged i like, tsw, beyern, enkei, 305Forged, some avant garde, sportline, VMR, apex(if on sale or group buy).

amazon offers some wheels above with free ship in most cases. tires also. i also check out m0db@rg@ins(spelled incorrectly to post)

Sportline 7s from m0d... has some kinda discount going on, $649 instead of $1299. I've seen a few mentions of Sportline wheels and all seem to be positive. These are flow formed and this seems to be a great deal. Are these durable enough for daily spirited driving?
The sizes they have 19x8.5 ET33 for the front which seems perfect, 5.3mm close to suspension and 7.3mm further out should not rub?
For the rear I was looking at 19x9.5ET40 which will be 25mm closer to suspension and poke out 13mm, will that be fine?
Will 18" wheels have any advantage over 19s? Apart from the tires being about $40 cheaper per tire

UPDATE:
I'm also looking at the 18" setup for the same, front is 18x8.5 ET35, 7.3mm closer to the strut and 5.3mm poking out further as compared to present stock 18x8 setup, should not experience any rubbing on this and stance seems better too, like 5mm spacers? And for rear I'm looking at 18x9 ET35, 13.7mm closer to suspension and poke out 11.3mm, again seems like it should not rub and better stance, like 10mm spacer?
Also, I hope there's no understeer due to staggered setup on xDrive?

[alohasurftoad]

Originally Posted by thatBimmerBloke

Sportline 7s from m0d... has some kinda discount going on, $649 instead of $1299. I've seen a few mentions of Sportline wheels and all seem to be positive. These are flow formed and this seems to be a great deal. Are these durable enough for daily spirited driving?
The sizes they have 19x8.5 ET33 for the front which seems perfect, 5.3mm close to suspension and 7.3mm further out should not rub?
For the rear I was looking at 19x9.5ET40 which will be 25mm closer to suspension and poke out 13mm, will that be fine?
Will 18" wheels have any advantage over 19s? Apart from the tires being about $40 cheaper per tire

UPDATE:
I'm also looking at the 18" setup for the same, front is 18x8.5 ET35, 7.3mm closer to the strut and 5.3mm poking out further as compared to present stock 18x8 setup, should not experience any rubbing on this and stance seems better too, like 5mm spacers? And for rear I'm looking at 18x9 ET35, 13.7mm closer to suspension and poke out 11.3mm, again seems like it should not rub and better stance, like 10mm spacer?
Also, I hope there's no understeer due to staggered setup on xDrive?

the 19" sportline sizes you're considering will fit without issue. if you like it's styling, $649 is a no brainer for rotary forged.

19x8.5 or 18x9 with 255 square will handle better than the staggered setup. the best handling would be square with +35ish front, +45 rear. the front track wider being than rear to reduce understeer. this is likely why the oem staggered setups are offset +(34-36) front, +47 rear. is your driving style and ability, such that you are able to realize/exploit all these variables, though?

the functional advantage of 18" is more sidewall for better ride and impact protection. the general consensus is 19" arguably looks nicer but, to me, it depends on wheel face and what type of look you want.

staggered setups inherently understeer unless we're talking ultra high torque, mid or rear engine exotics.

[thatBimmerBloke]

Originally Posted by alohasurftoad

the 19" sportline sizes you're considering will fit without issue. if you like it's styling, $649 is a no brainer for rotary forged.

19x8.5 or 18x9 with 255 square will handle better than the staggered setup. the best handling would be square with +35ish front, +45 rear. the front track wider being than rear to reduce understeer. this is likely why the oem staggered setups are offset +(34-36) front, +47 rear. is your driving style and ability, such that you are able to realize/exploit all these variables, though?

the functional advantage of 18" is more sidewall for better ride and impact protection. the general consensus is 19" arguably looks nicer but, to me, it depends on wheel face and what type of look you want.

staggered setups inherently understeer unless we're talking ultra high torque, mid or rear engine exotics.

From the 18" offerings, I feel like 18x8.5 ET35 with 235/45/18 for the front and 18x9 ET35 with the same 235/45/18 should be a good setup? I won't get a wider front track but it should be close enough? Or do I need a different size tire for the rear? They also have 18x9 with ET45.
I am leaning towards 18 as roads here in Wisconsin aren't very good and extra padding will help, plus cheaper tires, less weight and I like the look of stock 18s on my car, they don't look that small.

UPDATE:
I think I'll go with 18x8.5 ET35 square setup, it'll be more concave than my present wheels and wider for more grip. Will 235/45 be the best option of tires for this setup?

[alohasurftoad]

for your 435xi, i would get 18x9,+35 on 255/40/18. 255 sits squarely on a 9"(no stretch/bulge) and it's nice and wide for N55 torque and vehicle weight.

here is 18x8.5 +35 square with 255/40/18(slightest 5mm bulge). 255/40 sits square on 9", that's the only difference. https://f30.bimmerpost.com/forums/sh...7&postcount=19

if you prefer 235/45/18 square just get 18x8.5" +35. no sense in unnecessary extra wheel width at the rear causing a stretch to the 235 on a 9".

square of same offsets and tire size are good for rotation any way you want and getting extra tread life.

[thatBimmerBloke]

Originally Posted by alohasurftoad

for your 435xi, i would get 18x9,+35 on 255/40/18. 255 sits squarely on a 9"(no stretch/bulge) and it's nice and wide for N55 torque and vehicle weight.

here is 18x8.5 +35 square with 255/40/18(slightest 5mm bulge). 255/40 sits square on 9", that's the only difference. https://f30.bimmerpost.com/forums/sh...7&postcount=19

if you prefer 235/45/18 square just get 18x8.5" +35. no sense in unnecessary extra wheel width at the rear causing a stretch to the 235 on a 9".

square of same offsets and tire size are good for rotation any way you want and getting extra tread life.

Are you sure 255 sits squarely on 9" wide wheel? 255(10.02") comes close to 10" wheel and even willtheyfit shows a bulge for 255 on 9". Maybe I'm reading this the wrong way?