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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > Fitting MICHELIN PILOT SUPER SPORT (245/40-R18 / 97Y) on F30 335 Xdrive
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      05-23-2016, 05:12 PM   #1
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Arrow Fitting MICHELIN PILOT SUPER SPORT (245/40-R18 / 97Y) on F30 335 Xdrive

Hey Guys,

I have a stock 2015 F30 335 Xdrive with stock rims and tires. Sport line.

Wondering if there will be any problems fitting MICHELIN PILOT SUPER SPORT 245/40-R18 tires on 18x8.5 all around square setup wheels.

My car is leased so I don't want to mess anything up.

Photos would be great also.
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      05-23-2016, 05:15 PM   #2
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that will fit fine
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      05-23-2016, 05:17 PM   #3
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Quote:
Originally Posted by aw328i_NJ View Post
that will fit fine
What about speeding? potholes, locked turns ? Would that be okay aswell ?

Thanks for the response.
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      05-23-2016, 08:31 PM   #4
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I am putting the same size 245/40 on a new set of 18x8.5 wheels this week. This is very similar to the stock setup of 225/45 on 18x8 wheels. They are slightly shorter in diameter but highly unlikely to cause any issue.
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      05-24-2016, 05:59 AM   #5
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Quote:
Originally Posted by imkash
Hey Guys,

I have a stock 2015 F30 335 Xdrive with stock rims and tires. Sport line.

Wondering if there will be any problems fitting MICHELIN PILOT SUPER SPORT 245/40-R18 tires on 18x8.5 all around square setup wheels.

My car is leased so I don't want to mess anything up.

Photos would be great also.
Doesn't X-Drive come with 8" wide rims?
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      05-24-2016, 07:28 AM   #6
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Quote:
Originally Posted by imkash View Post
What about speeding? potholes, locked turns ? Would that be okay aswell ?

Thanks for the response.
What about it, you fear the profile is too low? That would be really funny considering what most here run. I have a square 8.5" setup with 245/35R20īs, MPSS and no problem at all.
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      05-24-2016, 10:30 AM   #7
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Quote:
Originally Posted by aw328i_NJ View Post
I am putting the same size 245/40 on a new set of 18x8.5 wheels this week. This is very similar to the stock setup of 225/45 on 18x8 wheels. They are slightly shorter in diameter but highly unlikely to cause any issue.
That sounds great. May you upload some pics so I can see how it looks when your finished ?
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      05-24-2016, 10:32 AM   #8
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Quote:
Originally Posted by glennQNYC View Post
Doesn't X-Drive come with 8" wide rims?
Yes it does, just heard of people having rubbing so I wasn't to sure what would happen.
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      05-24-2016, 10:33 AM   #9
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Quote:
Originally Posted by Vitoco View Post
What about it, you fear the profile is too low? That would be really funny considering what most here run. I have a square 8.5" setup with 245/35R20īs, MPSS and no problem at all.
That's not bad actually. So I have a question for you. Cause I also thought of going 19 inch'. What are the pros and cons of having bigger rims on your car?
Don't want to effect of decrease my performance.
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      05-24-2016, 01:45 PM   #10
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There won't be any issue with those tires. On my F31 xDrive I run 245/40/18 Michelin PSS's on the stock 400M 18" wheels without any rubbing at all, not even close. The tires are very similar in size to the stock 225/45/18 Conti ProContact SSRs.
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      05-24-2016, 02:02 PM   #11
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Quote:
Originally Posted by imkash
Quote:
Originally Posted by glennQNYC View Post
Doesn't X-Drive come with 8" wide rims?
Yes it does, just heard of people having rubbing so I wasn't to sure what would happen.
My comment is related to your original post where you mention having 8.5" rims. I guess that was an oversight?
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      05-24-2016, 02:33 PM   #12
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Quote:
Originally Posted by glennQNYC View Post
My comment is related to your original post where you mention having 8.5" rims. I guess that was an oversight?
Well yeah it comes stock 8 inches. I guess half and inch at 8.5 shouldnt be an crazy difference.
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      05-24-2016, 02:34 PM   #13
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Quote:
Originally Posted by bad karma View Post
There won't be any issue with those tires. On my F31 xDrive I run 245/40/18 Michelin PSS's on the stock 400M 18" wheels without any rubbing at all, not even close. The tires are very similar in size to the stock 225/45/18 Conti ProContact SSRs.
Yeah well thats a relief, I just feel the 8 inch stock look too slim and want a Beefer square stance for my car.
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      05-24-2016, 08:35 PM   #14
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Your tire and wheel size 18"x8" are what Tirerack used in testing high performance all season run flats. They used a 2012 F30 328. So as the others have said, you're fine.

Plus quite a bit difference in choice with the 245/40, thanks.
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      05-25-2016, 05:05 AM   #15
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Quote:
Originally Posted by imkash View Post
That's not bad actually. So I have a question for you. Cause I also thought of going 19 inch'. What are the pros and cons of having bigger rims on your car?
Don't want to effect of decrease my performance.
Bigger rims is mostly for looks, but as long as u keep the weight of the wheels down there will be no performance loss. Comfort is another issue, but it goes hand in hand with the weight as well, not only less profile. I had the 403Ms with RFTs (19") and they weighed more than this set of 20" wheels paired with Michelin PSS, both the comfort AND "zippiness" of the car was really improved. I chose a taller tire than standard, just for that extra bit of comfort.

So performance/comfort wise there doesnt have to be any con at all, if the weight is kept down (at the cost, of the cost). So itīs basically down to how much u are willing to spend
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      05-25-2016, 05:16 PM   #16
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I'm running 235/40/18 square as one of my setups on 18x8.5 Apex Arc 8 wheels. Also a 335 xdrive.

That was the main recommended size by Apex. 245/40/18 was a secondary option they recommended. I didn't do the math myself, but I'm assuming 235 wide is probably a little closer to stock spec than 245, but both are within the 3% threshold?
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      05-25-2016, 06:30 PM   #17
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Quote:
Originally Posted by E30toF30 View Post
I'm running 235/40/18 square as one of my setups on 18x8.5 Apex Arc 8 wheels. Also a 335 xdrive.

That was the main recommended size by Apex. 245/40/18 was a secondary option they recommended. I didn't do the math myself, but I'm assuming 235 wide is probably a little closer to stock spec than 245, but both are within the 3% threshold?
235/40/18 is seriously undersized overall diameter.255/40/18 is stock size, 245/40/18 is slightly undersized.
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      05-26-2016, 07:44 PM   #18
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Quote:
Originally Posted by Syed View Post
235/40/18 is seriously undersized overall diameter.255/40/18 is stock size, 245/40/18 is slightly undersized.
This comment made me worried a little so I went figured out how to do the calculations myself.

235/40/18 is far from "seriously" undersized. It is still within the 3% threshold so is still well within acceptable size. 235/40/18 is approximately 2.4% smaller than 255/40/18. Naturally the 245 width will be even closer to the OEM 18" sizing and a better option.

This does make me wonder why APEX would recommend a 235 width tire over a 245 width if the 245 is even closer to stock spec. Maybe the 235 wide works better with an 8.5" wide wheel? I'm going to ask!
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      05-26-2016, 08:13 PM   #19
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Quote:
Originally Posted by E30toF30 View Post
This comment made me worried a little so I went figured out how to do the calculations myself.

235/40/18 is far from "seriously" undersized. It is still within the 3% threshold so is still well within acceptable size. 235/40/18 is approximately 2.4% smaller than 255/40/18. Naturally the 245 width will be even closer to the OEM 18" sizing and a better option.

This does make me wonder why APEX would recommend a 235 width tire over a 245 width if the 245 is even closer to stock spec. Maybe the 235 wide works better with an 8.5" wide wheel? I'm going to ask!
did they know you had an F30 and not an E90? The 235/40 would be closer to stock height for the E90. I went with 245/40 on my F30 and although they are not mounted on the car yet they look almost identical to my 225/45 as far as overall height
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      05-26-2016, 08:30 PM   #20
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Quote:
Originally Posted by aw328i_NJ View Post
did they know you had an F30 and not an E90? The 235/40 would be closer to stock height for the E90.
Yeah they did know it was for a 2015 F30.
I think he recommended the 235 as a better fit for a 8.5" wheel seeing both 235 and 245 are both within spec (within 3% threshold).

I still haven't had the chance to send them a message to clarify.
Will see what they say.
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      05-27-2016, 08:12 PM   #21
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235/45-18 (1.5% taller than OEM) would have been a more logical recommendation for a 235 tire.
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      05-29-2016, 02:17 PM   #22
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Quote:
Originally Posted by E30toF30 View Post
I'm running 235/40/18 square as one of my setups on 18x8.5 Apex Arc 8 wheels. Also a 335 xdrive.

That was the main recommended size by Apex. 245/40/18 was a secondary option they recommended. I didn't do the math myself, but I'm assuming 235 wide is probably a little closer to stock spec than 245, but both are within the 3% threshold?
Yeah for sure, so either or would probably have no problem being fitted. Guess thats true
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