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      09-27-2022, 01:02 PM   #1
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F30 xdrive 245/40/19 tires on 19x8.5 ET35 wheels

So as the title states I just picked up a set of 19x8.5 +35 offset wheels for my 335 xdrive.

I'm torn between three different tire sizes(square),
235/40/19
245/35/19
245/40/19

So I know the last option is a little bigger than stock diameter and I want wider tires for better fitment but also since I live in the northeast need something to get me thru the winter.

I have a set of kw coilovers I plan on installing as well so I want to know which of these three options would be the best so that I don't rub?
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      09-27-2022, 05:24 PM   #2
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since you are going to lower your car, the best option would be 255/35/19, which you have not listed. michelin pilot sport all season 4, continental extremecontact dws06plus or vredestein hypertrac all-season

https://f30.bimmerpost.com/forums/sh...ht=bimmerguy91
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Last edited by alohasurftoad; 09-27-2022 at 05:54 PM..
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      09-27-2022, 05:54 PM   #3
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IMO, if you get any kind of snow where you’re at, a 255 will be too big in front. Not for just poke (which it will slightly) but by lack of clearance to the fender liner once it packs up with snow.
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      09-27-2022, 09:03 PM   #4
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since you are going to lower your car, the best option would be 255/35/19, which you have not listed. continental extremecontact dws06plus or vredestein hypertrac all-season

https://f30.bimmerpost.com/forums/sh...ht=bimmerguy91
.
So are u sure this won't rub? Even if I lower it, cuz it seems huge
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      09-27-2022, 09:04 PM   #5
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IMO, if you get any kind of snow where you're at, a 255 will be too big in front. Not for just poke (which it will slightly) but by lack of clearance to the fender liner once it packs up with snow.
Ok thanks, what would you suggest I do?
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      09-27-2022, 10:38 PM   #6
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Ok thanks, what would you suggest I do?
Do you have different summer and winter wheels-tire sets, or are you looking for all-seasons on these wheels? What’s your expected driving conditions, how frequent/critical is your driving, and what are you looking for most from these tires?

I’d go with a narrower tire and higher sidewalls the more critical your winter snow and poor road condition handling requirements are, staying close the standard OE 26” (662mm) diameter.

So tire choices for 19x8.5 wheels would be 225/40 or 235/40 on the one end (snow critical/poor roads), with 245/35 or 255/35 on the other (snow less critical/better roads)…
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      09-28-2022, 07:05 AM   #7
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Originally Posted by Stellarxz View Post
Ok thanks, what would you suggest I do?
Do you have different summer and winter wheels-tire sets, or are you looking for all-seasons on these wheels? What’s your expected driving conditions, how frequent/critical is your driving, and what are you looking for most from these tires?

I’d go with a narrower tire and higher sidewalls the more critical your winter snow and poor road condition handling requirements are, staying close the standard OE 26” (662mm) diameter.

So tire choices for 19x8.5 wheels would be 225/40 or 235/40 on the one end (snow critical/poor roads), with 245/35 or 255/35 on the other (snow less critical/better roads)…
So this is my only set of wheels/tires so I'm looking all season, and I drive about 70 ish miles a day for work.

I live in the northeast so the roads r kinda meh and snow can be awful or not bad

I was eyeing either the 235/40/19 or the 255/35/19
But I'm worried that either of them will rub if I lower the car about an inch?
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      09-28-2022, 07:42 AM   #8
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Quote:
Originally Posted by Stellarxz View Post
So as the title states I just picked up a set of 19x8.5 +35 offset wheels for my 335 xdrive.

I'm torn between three different tire sizes(square),
235/40/19
245/35/19
245/40/19

So I know the last option is a little bigger than stock diameter and I want wider tires for better fitment but also since I live in the northeast need something to get me thru the winter.

I have a set of kw coilovers I plan on installing as well so I want to know which of these three options would be the best so that I don't rub?
Definitely go square vs staggered, and 8.5" with ET35 are good choices. Below are some questions that could help narrow down choices:

Which year and model XDrive do you have?

Exactly which KW Coilovers did you already buy or are buying?

For my model F30 335ix, KW V1/V2/V3 have drop ranges of Front 1.0"-2.2" and Rear 1.2"-2.4". With a minimum rear drop of 1.2", the front might end up being dropped by 1.5"-1.6" to get rid of the reverse rake look. (And that's about the maximum that the front can be dropped without the front drive shafts possibly snapping.

For my model F30 335ix, the KW V2 Street Comfort has drop ranges of Front 0.6"-1.8" and Rear 0.8"-2.0". More forgiving because with a minimum rear drop of 0.8", the front might typically be dropped to about 1.1"-1.2" to eliminate the reverse rake look.

With these potential drops of F1.6"/R1.2" and F1.2"/R0.8", it's important to factor in tire height/width in potentially hitting anything, especially in front.

The current 19" tire size choices with their DWS06+ diameters from their TireRack website Specs tab:

235/40 (26.4")
245/35 (25.8")
245/40 (26.7")
255/35 (26.0")

245/35 and 255/35 are closest to the stock 26.0" diameter, so I'd assume that they would be less susceptible to hitting. Alohasurftoad may be able to comment on this better than I.

Snow can bring up a variety of issues. I went through this when I chose between summer/all season/winter tires.

Is your snow driving limited to city/suburban commuter driving when roads are being plowed and staying home when snowfall is ridiculous. If so, then an all season or winter tire in a wide width is fine. Then all season Continental DWS06+ in 235-255 width or winter Michelin X-Ice Snow tires in 235-255 are fine.

Do you have a job or responsibilities that force you to be out on unplowed or semi-plowed roads when heavy snow is coming down. Do you live in mountainous or rural area where some roads might not get plowed very often, or do you drive to ski areas on weekends. Then buy a dedicated set of winter BMW 400M 18x8.0 ET34 wheels and mount Blizzak WS90 225/45-18 on them.
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      09-28-2022, 08:07 AM   #9
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Quote:
Originally Posted by johnung View Post
Quote:
Originally Posted by Stellarxz View Post
So as the title states I just picked up a set of 19x8.5 +35 offset wheels for my 335 xdrive.

I'm torn between three different tire sizes(square),
235/40/19
245/35/19
245/40/19

So I know the last option is a little bigger than stock diameter and I want wider tires for better fitment but also since I live in the northeast need something to get me thru the winter.

I have a set of kw coilovers I plan on installing as well so I want to know which of these three options would be the best so that I don't rub?
Definitely go square vs staggered, and 8.5" with ET35 are good choices. Below are some questions that could help narrow down choices:

Which year and model XDrive do you have?

Exactly which KW Coilovers did you already buy or are buying?

For my model F30 335ix, KW V1/V2/V3 have drop ranges of Front 1.0"-2.2" and Rear 1.2"-2.4". With a minimum rear drop of 1.2", the front might end up being dropped by 1.5"-1.6" to get rid of the reverse rake look. (And that's about the maximum that the front can be dropped without the front drive shafts possibly snapping.

For my model F30 335ix, the KW V2 Street Comfort has drop ranges of Front 0.6"-1.8" and Rear 0.8"-2.0". More forgiving because with a minimum rear drop of 0.8", the front might typically be dropped to about 1.1"-1.2" to eliminate the reverse rake look.

With these potential drops of F1.6"/R1.2" and F1.2"/R0.8", it's important to factor in tire height/width in potentially hitting anything, especially in front.

The current 19" tire size choices with their DWS06+ diameters from their TireRack website Specs tab:

235/40 (26.4")
245/35 (25.8")
245/40 (26.7")
255/35 (26.0")

245/35 and 255/35 are closest to the stock 26.0" diameter, so I'd assume that they would be less susceptible to hitting. Alohasurftoad may be able to comment on this better than I.

Snow can bring up a variety of issues. I went through this when I chose between summer/all season/winter tires.

Is your snow driving limited to city/suburban commuter driving when roads are being plowed and staying home when snowfall is ridiculous. If so, then an all season or winter tire in a wide width is fine. Then all season Continental DWS06+ in 235-255 width or winter Michelin X-Ice Snow tires in 235-255 are fine.

Do you have a job or responsibilities that force you to be out on unplowed or semi-plowed roads when heavy snow is coming down. Do you live in mountainous or rural area where some roads might not get plowed very often, or do you drive to ski areas on weekends. Then buy a dedicated set of winter BMW 400M 18x8.0 ET34 wheels and mount Blizzak WS90 225/45-18 on them.
First of all thank you so much for that detailed response!

So I have a 2013 335 xdrive, msport w the normal suspension, and I already have a set of kw v1 coilovers just sitting waiting to be installed

So I went to town fair tire and turns out they don't have any tires they can get anytime soon in the size 245/35 cuz it's a really uncommon size and they have 255/35 in stock and 245/40 in stock, and can order 235/40. So my main question is essentially picking between 255/35 or 235/40 becuase 245/40 would just be way too large. I was just wondering how much slower the 255/35 would make me?

As for winter driving, I drive in the snow sometimes but I'm def not out during a blizzard, only driving thru light snow and plowed roads, so wondering how the tires options you have would par in that climate.

My current wheels are 400m and I was planning on putting all seasons on these new wheels for now and then next winter or sometime put winters on my current 400m wheels, I'm just on a budget for a while.
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      09-28-2022, 08:31 AM   #10
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Quote:
Originally Posted by Stellarxz View Post
Quote:
Originally Posted by johnung View Post
Quote:
Originally Posted by Stellarxz View Post
So as the title states I just picked up a set of 19x8.5 +35 offset wheels for my 335 xdrive.

I'm torn between three different tire sizes(square),
235/40/19
245/35/19
245/40/19

So I know the last option is a little bigger than stock diameter and I want wider tires for better fitment but also since I live in the northeast need something to get me thru the winter.

I have a set of kw coilovers I plan on installing as well so I want to know which of these three options would be the best so that I don't rub?
Definitely go square vs staggered, and 8.5" with ET35 are good choices. Below are some questions that could help narrow down choices:

Which year and model XDrive do you have?

Exactly which KW Coilovers did you already buy or are buying?

For my model F30 335ix, KW V1/V2/V3 have drop ranges of Front 1.0"-2.2" and Rear 1.2"-2.4". With a minimum rear drop of 1.2", the front might end up being dropped by 1.5"-1.6" to get rid of the reverse rake look. (And that's about the maximum that the front can be dropped without the front drive shafts possibly snapping.

For my model F30 335ix, the KW V2 Street Comfort has drop ranges of Front 0.6"-1.8" and Rear 0.8"-2.0". More forgiving because with a minimum rear drop of 0.8", the front might typically be dropped to about 1.1"-1.2" to eliminate the reverse rake look.

With these potential drops of F1.6"/R1.2" and F1.2"/R0.8", it's important to factor in tire height/width in potentially hitting anything, especially in front.

The current 19" tire size choices with their DWS06+ diameters from their TireRack website Specs tab:

235/40 (26.4")
245/35 (25.8")
245/40 (26.7")
255/35 (26.0")

245/35 and 255/35 are closest to the stock 26.0" diameter, so I'd assume that they would be less susceptible to hitting. Alohasurftoad may be able to comment on this better than I.

Snow can bring up a variety of issues. I went through this when I chose between summer/all season/winter tires.

Is your snow driving limited to city/suburban commuter driving when roads are being plowed and staying home when snowfall is ridiculous. If so, then an all season or winter tire in a wide width is fine. Then all season Continental DWS06+ in 235-255 width or winter Michelin X-Ice Snow tires in 235-255 are fine.

Do you have a job or responsibilities that force you to be out on unplowed or semi-plowed roads when heavy snow is coming down. Do you live in mountainous or rural area where some roads might not get plowed very often, or do you drive to ski areas on weekends. Then buy a dedicated set of winter BMW 400M 18x8.0 ET34 wheels and mount Blizzak WS90 225/45-18 on them.
First of all thank you so much for that detailed response!

So I have a 2013 335 xdrive, msport w the normal suspension, and I already have a set of kw v1 coilovers just sitting waiting to be installed

So I went to town fair tire and turns out they don't have any tires they can get anytime soon in the size 245/35 cuz it's a really uncommon size and they have 255/35 in stock and 245/40 in stock, and can order 235/40. So my main question is essentially picking between 255/35 or 235/40 becuase 245/40 would just be way too large. I was just wondering how much slower the 255/35 would make me?

As for winter driving, I drive in the snow sometimes but I'm def not out during a blizzard, only driving thru light snow and plowed roads, so wondering how the tires options you have would par in that climate.

My current wheels are 400m and I was planning on putting all seasons on these new wheels for now and then next winter or sometime put winters on my current 400m wheels, I'm just on a budget for a while.
I've got an F30 335ix also. I had the same situation a few years ago in the Fall. I actually held off on buying all season tires. Instead I bought winter tires. You could put winter Michelin X-Ice Snow tires on your 400M wheels in 245/40-18. See photo.

I never had an actual winter specific performance tire before. These are amazing. As the temperature drops the winter rubber actually gets softer and grips better. I've been stuck in traffic jams caused by black ice. Cars all around me spinning their wheels and not moving. With these tires I just drive right around them like it's dry pavement. I actually took the car to an empty parking lot with black ice and did donuts. I could not get my winter tires to slide! Same in snow, never had tires that handle snow so well.

I'm in NJ and I usually mount my winter tires on the car in November when temperatures start getting into the 40's. In Massachusetts you might be looking at October.

Then in April after you've saved up some more, install real high performance summer tires like Michelin Pilot Sport 4S on your new wheels. All Season tires (no matter how good they are) are really just compromises. There is nothing like driving with the best winter and summer tires on your car.

Hope this helps!
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      09-28-2022, 08:40 AM   #11
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Quote:
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Originally Posted by Stellarxz View Post
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Originally Posted by johnung View Post
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Originally Posted by Stellarxz View Post
So as the title states I just picked up a set of 19x8.5 +35 offset wheels for my 335 xdrive.

I'm torn between three different tire sizes(square),
235/40/19
245/35/19
245/40/19

So I know the last option is a little bigger than stock diameter and I want wider tires for better fitment but also since I live in the northeast need something to get me thru the winter.

I have a set of kw coilovers I plan on installing as well so I want to know which of these three options would be the best so that I don't rub?
Definitely go square vs staggered, and 8.5" with ET35 are good choices. Below are some questions that could help narrow down choices:

Which year and model XDrive do you have?

Exactly which KW Coilovers did you already buy or are buying?

For my model F30 335ix, KW V1/V2/V3 have drop ranges of Front 1.0"-2.2" and Rear 1.2"-2.4". With a minimum rear drop of 1.2", the front might end up being dropped by 1.5"-1.6" to get rid of the reverse rake look. (And that's about the maximum that the front can be dropped without the front drive shafts possibly snapping.

For my model F30 335ix, the KW V2 Street Comfort has drop ranges of Front 0.6"-1.8" and Rear 0.8"-2.0". More forgiving because with a minimum rear drop of 0.8", the front might typically be dropped to about 1.1"-1.2" to eliminate the reverse rake look.

With these potential drops of F1.6"/R1.2" and F1.2"/R0.8", it's important to factor in tire height/width in potentially hitting anything, especially in front.

The current 19" tire size choices with their DWS06+ diameters from their TireRack website Specs tab:

235/40 (26.4")
245/35 (25.8")
245/40 (26.7")
255/35 (26.0")

245/35 and 255/35 are closest to the stock 26.0" diameter, so I'd assume that they would be less susceptible to hitting. Alohasurftoad may be able to comment on this better than I.

Snow can bring up a variety of issues. I went through this when I chose between summer/all season/winter tires.

Is your snow driving limited to city/suburban commuter driving when roads are being plowed and staying home when snowfall is ridiculous. If so, then an all season or winter tire in a wide width is fine. Then all season Continental DWS06+ in 235-255 width or winter Michelin X-Ice Snow tires in 235-255 are fine.

Do you have a job or responsibilities that force you to be out on unplowed or semi-plowed roads when heavy snow is coming down. Do you live in mountainous or rural area where some roads might not get plowed very often, or do you drive to ski areas on weekends. Then buy a dedicated set of winter BMW 400M 18x8.0 ET34 wheels and mount Blizzak WS90 225/45-18 on them.
First of all thank you so much for that detailed response!

So I have a 2013 335 xdrive, msport w the normal suspension, and I already have a set of kw v1 coilovers just sitting waiting to be installed

So I went to town fair tire and turns out they don't have any tires they can get anytime soon in the size 245/35 cuz it's a really uncommon size and they have 255/35 in stock and 245/40 in stock, and can order 235/40. So my main question is essentially picking between 255/35 or 235/40 becuase 245/40 would just be way too large. I was just wondering how much slower the 255/35 would make me?

As for winter driving, I drive in the snow sometimes but I'm def not out during a blizzard, only driving thru light snow and plowed roads, so wondering how the tires options you have would par in that climate.

My current wheels are 400m and I was planning on putting all seasons on these new wheels for now and then next winter or sometime put winters on my current 400m wheels, I'm just on a budget for a while.
I've got an F30 335ix also. I had the same situation a few years ago in the Fall. I actually held off on buying all season tires. Instead I bought winter tires. You could put winter Michelin X-Ice Snow tires on your 400M wheels in 245/40-18. See photo.

I never had an actual winter specific performance tire before. These are amazing. As the temperature drops the winter rubber actually gets softer and grips better. I've been stuck in traffic jams caused by black ice. Cars all around me spinning their wheels and not moving. With these tires I just drive right around them like it's dry pavement. I actually took the car to an empty parking lot with black ice and did donuts. I could not get my winter tires to slide! Same in snow, never had tires that handle snow so well.

I'm in NJ and I usually mount my winter tires on the car in November when temperatures start getting into the 40's. In Massachusetts you might be looking at October.

Then in April after you've saved up some more, install real high performance summer tires like Michelin Pilot Sport 4S on your new wheels. All Season tires (no matter how good they are) are really just compromises. There is nothing like driving with the best winter and summer tires on your car.

Hope this helps!
I agree 100% with what u said but if I bought winter tires now I wouldn't be able to afford new tires prolly for another year or two, just cuz of the financial situation I'm in right now, that's the only reason I'm looking at all seasons, also cuz my current tires are atrociously bald, so I'm looking to change em soon.

What do you think, about the rest of it though? Between the 255/35 and 235/40 and performance impact, comfort, etc?
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      09-28-2022, 09:09 AM   #12
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https://f30.bimmerpost.com/forums/sh...24&postcount=4

for reference, in the link above, thisismikeyb has a lowered F30 with 245/45/18(26.7"), which has same 3-D girth as 245/40/19(26.7"). of your choices, this width and diameter has the greatest potential for rub while turning full lock, especially with contamination build up on the tires. from what hes posted, he's never had problems, even in winter.

im sticking with my original recommendation of 255/35/19 for best performance during non winter conditions and arguably best appearance, especially when lowered.

235/40/19 if in wintery conditions more often than not.

fyi, KW V1 min lowering (highest height) is close to as low as you'd want for xdrive front half shaft (axle) angles. some with xdrives have gone real low but why risk it?
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      09-28-2022, 09:17 AM   #13
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Originally Posted by alohasurftoad View Post
https://f30.bimmerpost.com/forums/sh...38;postcount=4

for reference, in the link above, thisismikeyb has a lowered F30 with 245/45/18(26.7"), which has same 3-D girth as 245/40/19(26.7"). of your choices, this width and diameter has the greatest potential for rub while turning full lock, especially with contamination build up on the tires. from what hes posted, he's never had problems, even in winter.

im sticking with my original recommendation of 255/35/19 for best performance during non winter conditions and arguably best appearance, especially when lowered.

235/40/19 if in wintery conditions more often than not.

fyi, KW V1 min lowering (highest height) is close to as low as you'd want for xdrive front half shaft (axle) angles. some with xdrives have gone real low but why risk it?
Yeah, I'd do the 255/35-19 too.
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      09-28-2022, 09:24 AM   #14
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Quote:
Originally Posted by alohasurftoad View Post
https://f30.bimmerpost.com/forums/sh...38;postcount=4

for reference, in the link above, thisismikeyb has a lowered F30 with 245/45/18(26.7"), which has same 3-D girth as 245/40/19(26.7"). of your choices, this width and diameter has the greatest potential for rub while turning full lock, especially with contamination build up on the tires. from what hes posted, he's never had problems, even in winter.

im sticking with my original recommendation of 255/35/19 for best performance during non winter conditions and arguably best appearance, especially when lowered.

235/40/19 if in wintery conditions more often than not.

fyi, KW V1 min lowering (highest height) is close to as low as you'd want for xdrive front half shaft (axle) angles. some with xdrives have gone real low but why risk it?
So I've seen forums all over the place some people lowering on 245/40 and being fine some people rubbing at stock, so I didn't know if it was worth taking the risk?

As for the 255/35 you recommend do you know how much it would slow me down due to the much larger contact patch?

Also I wasn't planning to slam the car just enough to make it look a little more flush, maybe an inch AT MOST all around? But if it's going to snap the front axle I don't think it's worth it cuz the car already has 100k miles on it
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      09-28-2022, 09:48 AM   #15
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So I've seen forums all over the place some people lowering on 245/40 and being fine some people rubbing at stock, so I didn't know if it was worth taking the risk?

As for the 255/35 you recommend do you know how much it would slow me down due to the much larger contact patch?

Also I wasn't planning to slam the car just enough to make it look a little more flush, maybe an inch AT MOST all around? But if it's going to snap the front axle I don't think it's worth it cuz the car already has 100k miles on it
Approx 35mm(+or-) front, 25mm(+or-) rear to level reverse rake.

235 has less rolling resistance but will "burn out" easier, which is always slower. while 255 has more rolling resistance, it "burns out" less easily but most importantly, will have way more grip during high speed rips around a turnpike, for example. with 6-cyl torque, 255>235
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      09-28-2022, 11:51 AM   #16
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255/35/19 lowered
https://f30.bimmerpost.com/forums/sh...0&postcount=59
https://f30.bimmerpost.com/forums/sh...37&postcount=7
https://f30.bimmerpost.com/forums/sh...1&postcount=13
https://f30.bimmerpost.com/forums/sh...7&postcount=14

235/40/19 unlowered
https://f30.bimmerpost.com/forums/sh...04&postcount=8

245/40/19 unlowered, both need lowering. looks beefy with some wheel faces. 26.7"=taller gearing at pavement.
https://f30.bimmerpost.com/forums/sh...78&postcount=4
https://f30.bimmerpost.com/forums/sh...68&postcount=4
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      09-28-2022, 12:05 PM   #17
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Woah thanks😲

I guess I will go with the 255/35/19 I just thought they look too big but it looks like they fit well, I might still take a look at the 235/45/19 though

I'll post pics once I get everything installed!
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      09-28-2022, 03:57 PM   #18
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Quote:
Originally Posted by Stellarxz View Post
Quote:
Originally Posted by alohasurftoad View Post
https://f30.bimmerpost.com/forums/sh...38;postcount=4

for reference, in the link above, thisismikeyb has a lowered F30 with 245/45/18(26.7"), which has same 3-D girth as 245/40/19(26.7"). of your choices, this width and diameter has the greatest potential for rub while turning full lock, especially with contamination build up on the tires. from what hes posted, he's never had problems, even in winter.

im sticking with my original recommendation of 255/35/19 for best performance during non winter conditions and arguably best appearance, especially when lowered.

235/40/19 if in wintery conditions more often than not.

fyi, KW V1 min lowering (highest height) is close to as low as you'd want for xdrive front half shaft (axle) angles. some with xdrives have gone real low but why risk it?
So I've seen forums all over the place some people lowering on 245/40 and being fine some people rubbing at stock, so I didn't know if it was worth taking the risk?

As for the 255/35 you recommend do you know how much it would slow me down due to the much larger contact patch?

Also I wasn't planning to slam the car just enough to make it look a little more flush, maybe an inch AT MOST all around? But if it's going to snap the front axle I don't think it's worth it cuz the car already has 100k miles on it
If you look at aftermarket spring manufacturers offerings for XDrive, they don't drop the front more than 1.5"-1.6". They aren't stupid. That's the reasonable limit without incurring risk of getting outside the XDrive design criteria and maybe snapping a front axle.

One of the things that guys forget to do in all the excitement of installing new parts, is to take stock height measurements. It's important to know the car's baseline.

The simplest and most accurate measurement for chassis height is to take a tape measure and measure from the center point of the BMW logo on the wheel straight up to the nearest point on the fender lip. Do this at all four wheels because they are often not the same. It doesn't hurt to fill up the gas tank either. A full tank weighs about 100 lbs.

This measurement gives the exact height above the center of the axle. It doesn't change no matter what wheels or tires are on the car.

Another measurement that I like to take is at the four jack points under the car. Have to park the car on a level concrete pad. Asphalt is inherently too wavy.

I just measure from the lowest lip on the jack point to the ground. That gives me an idea of what the real ground clearance is. Also I carry around a piece of 2"x 12" wood in my trunk. Drive a tire up on it and it adds 1.5" of height to get a jack under the jack point.
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      09-28-2022, 04:36 PM   #19
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Quote:
Originally Posted by johnung View Post
Quote:
Originally Posted by Stellarxz View Post
Quote:
Originally Posted by alohasurftoad View Post
https://f30.bimmerpost.com/forums/sh...38;postcount=4

for reference, in the link above, thisismikeyb has a lowered F30 with 245/45/18(26.7"), which has same 3-D girth as 245/40/19(26.7"). of your choices, this width and diameter has the greatest potential for rub while turning full lock, especially with contamination build up on the tires. from what hes posted, he's never had problems, even in winter.

im sticking with my original recommendation of 255/35/19 for best performance during non winter conditions and arguably best appearance, especially when lowered.

235/40/19 if in wintery conditions more often than not.

fyi, KW V1 min lowering (highest height) is close to as low as you'd want for xdrive front half shaft (axle) angles. some with xdrives have gone real low but why risk it?
So I've seen forums all over the place some people lowering on 245/40 and being fine some people rubbing at stock, so I didn't know if it was worth taking the risk?

As for the 255/35 you recommend do you know how much it would slow me down due to the much larger contact patch?

Also I wasn't planning to slam the car just enough to make it look a little more flush, maybe an inch AT MOST all around? But if it's going to snap the front axle I don't think it's worth it cuz the car already has 100k miles on it
If you look at aftermarket spring manufacturers offerings for XDrive, they don't drop the front more than 1.5"-1.6". They aren't stupid. That's the reasonable limit without incurring risk of getting outside the XDrive design criteria and maybe snapping a front axle.

One of the things that guys forget to do in all the excitement of installing new parts, is to take stock height measurements. It's important to know the car's baseline.

The simplest and most accurate measurement for chassis height is to take a tape measure and measure from the center point of the BMW logo on the wheel straight up to the nearest point on the fender lip. Do this at all four wheels because they are often not the same. It doesn't hurt to fill up the gas tank either. A full tank weighs about 100 lbs.

This measurement gives the exact height above the center of the axle. It doesn't change no matter what wheels or tires are on the car.

Another measurement that I like to take is at the four jack points under the car. Have to park the car on a level concrete pad. Asphalt is inherently too wavy.

I just measure from the lowest lip on the jack point to the ground. That gives me an idea of what the real ground clearance is. Also I carry around a piece of 2"x 12" wood in my trunk. Drive a tire up on it and it adds 1.5" of height to get a jack under the jack point.
Ok perfect I'll be sure to do these and do the 255/35s rub when the car is lowered?
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      09-28-2022, 07:34 PM   #20
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One last thing, does anyone know if there's any extra noticeable damage to the wheel bearings, suspension, or axle by getting such wide tires?

Either day to day driving or when pushing it?
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      09-28-2022, 09:56 PM   #21
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Quote:
Originally Posted by Stellarxz View Post
One last thing, does anyone know if there's any extra noticeable damage to the wheel bearings, suspension, or axle by getting such wide tires? Either day to day driving or when pushing it?
i understand your concern but i have not yet seen any posts about extra wear and tear over normal caused by running 255 up front.

now, if you feel that 255 is too wide up front and prefer to go 235/40 square instead, there's nothing wrong with that. definitely get what YOU want and not what we want. at this point you are well informed about the pros and cons between the sizes and as long as you are happy with your choice is all that matters.

in the link below, wdeerfield front wheel is 235/40/19 on 8.5 ET35. looks reasonably girthy and will still provide plenty of grip with a UHPA/S such as Michelin Pilot Sport All Season 4 or Continental ExtremeContact DWS06 Plus. also, at 26.4" and a bit more sidewall, the gaps will be nice and tight after lowering and the ride slightly more compliant as well.
https://f30.bimmerpost.com/forums/sh...=vmr+v803+mp4s
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      09-28-2022, 11:52 PM   #22
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Quote:
Originally Posted by alohasurftoad View Post
Quote:
Originally Posted by Stellarxz View Post
One last thing, does anyone know if there's any extra noticeable damage to the wheel bearings, suspension, or axle by getting such wide tires? Either day to day driving or when pushing it?
i understand your concern but i have not yet seen any posts about extra wear and tear over normal caused by running 255 up front.

now, if you feel that 255 is too wide up front and prefer to go 235/40 square instead, there's nothing wrong with that. definitely get what YOU want and not what we want. at this point you are well informed about the pros and cons between the sizes and as long as you are happy with your choice is all that matters.

in the link below, wdeerfield front wheel is 235/40/19 on 8.5 ET35. looks reasonably girthy and will still provide plenty of grip with a UHPA/S such as Michelin Pilot Sport All Season 4 or Continental ExtremeContact DWS06 Plus. also, at 26.4" and a bit more sidewall, the gaps will be nice and tight after lowering and the ride slightly more compliant as well.
https://f30.bimmerpost.com/forums/sh...=vmr+v803+mp4s
Ok perfect that's good to hear, yea I just am thinking abt how it would look with 255s square in the front, it would poke out a lil bit and I'm not usually a fan of running spacers?

As for the 235s how much do you think I would be able to lower em, since they're 26.4, Idk how limited I am w my coilovers, basically I'm just asking if I could go lower/get better overall fitment with the235s or the 255s
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