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      10-16-2020, 12:42 AM   #1
MagicalTiger
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I Changed My Wheel Size to 20"

Hey Everyone
I wanted to get all-weather tires on my X5M Comp, but the only Tire/wheel combo which BMW was offering where 21inch with alpine 5(Winters)
I went with after Market 20 inch rims with
275/45 Michelin cross climates
The extra sidewall really helps with ride comfort and the car grips very well and the more narrow tires help with road-noise, overall very happy let me know what you think and if you have any questions
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      10-16-2020, 03:28 AM   #2
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Quote:
Originally Posted by MagicalTiger View Post
Hey Everyone
I wanted to get all-weather tires on my X5M Comp, but the only Tire/wheel combo which BMW was offering where 21inch with alpine 5(Winters)
I went with after Market 20 inch rims with
275/45 Michelin cross climates
The extra sidewall really helps with ride comfort and the car grips very well and the more narrow tires help with road-noise, overall very happy let me know what you think and if you have any questions
Heard good things about the cross climates but never tried them - less good in snow though I guess.

What rims are you using that clear the calipers?
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      10-16-2020, 05:15 AM   #3
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Could you share some pics?
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      10-16-2020, 10:23 PM   #4
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Quote:
Originally Posted by schaeffs888 View Post
Heard good things about the cross climates but never tried them - less good in snow though I guess.

What rims are you using that clear the calipers?
100% they are not going to perform as good as Winters But they still have their own advantages, so its 20-inch rims With a BMW logo on them is will try to upload an image it clears the Calipers and the brake disks
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      10-17-2020, 07:39 AM   #5
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I hope you kept the overall diameter of front and back wheels/tires consistent with stock?

If not you could have massive issues with drivetrain and transmission. Also if BMW doesn't recommend that size they could void warranty if they cause issues
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      10-18-2020, 03:39 PM   #6
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Quote:
Originally Posted by LSM View Post
I hope you kept the overall diameter of front and back wheels/tires consistent with stock?

If not you could have massive issues with drivetrain and transmission. Also if BMW doesn't recommend that size they could void warranty if they cause issues
the overall diameter is exactly the same, no errors rides perfectly
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      10-19-2020, 02:05 AM   #7
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Post pics
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      10-20-2020, 09:26 AM   #8
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As the others said, share some pics with wheel specs. I'm curious how much clearance you have on the front caliper.
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      10-20-2020, 09:55 AM   #9
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pics of the wheel and specs please
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      10-21-2020, 03:24 AM   #10
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Sorry it is very dirty
View post on imgur.com
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      10-21-2020, 07:28 AM   #11
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Originally Posted by MagicalTiger View Post
Sorry it is very dirty
View post on imgur.com
Thanks for sharing these - good to see they clear the caliper!

They look like 20" 741M's - didn't know they existed!
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      10-21-2020, 08:05 AM   #12
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Interesting.... those look like replicas since i don't think the originals comes in black and its missing the ///M logo. Eitherway looks like there is plenty of caliper clearance from a diameter aspect. It does look very close to the back side of the spoke which i suspect will be the issue for most wheels. Nothing spacers can't fix.

Can you take a pic of the whole car further back? I'm sure people want to see what the whole car looks like.

Thanks,

Alan
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      10-21-2020, 12:09 PM   #13
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Quote:
Originally Posted by Alan l. View Post
Interesting.... those look like replicas since i don't think the originals comes in black and its missing the ///M logo. Eitherway looks like there is plenty of caliper clearance from a diameter aspect. It does look very close to the back side of the spoke which i suspect will be the issue for most wheels. Nothing spacers can't fix.

Can you take a pic of the whole car further back? I'm sure people want to see what the whole car looks like.

Thanks,

Alan
He did say they're aftermarket, however, I would like to see the entire car as well. I am picking mine up in mid December and will need to put on winters right away.
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      10-21-2020, 05:10 PM   #14
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Quote:
Originally Posted by Alan l. View Post
Interesting.... those look like replicas since i don't think the originals comes in black and its missing the ///M logo. Eitherway looks like there is plenty of caliper clearance from a diameter aspect. It does look very close to the back side of the spoke which i suspect will be the issue for most wheels. Nothing spacers can't fix.

Can you take a pic of the whole car further back? I'm sure people want to see what the whole car looks like.

Thanks,

Alan
yes, they are aftermarket but the quality seems to be good and they look nice in my opinion and much cheaper I will post a pic of the entire car tonight
I will keep updating if I find anything wrong with them.
Ride quality has improved by 30% in my opinion I know most people like the stiffer ride, this is just another option, the ride is still stiff but over bumps and potholes in the road there is no harshness anymore, I have to see the snow performance
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      01-07-2021, 12:21 PM   #15
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very nice. i put OPTI RX5 20x9 w/ Pirelli Scorpion Winter Tires.
i love it.
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      02-05-2021, 05:04 PM   #16
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anyone have OEM rim offsets to find decent set of winters? Seems like 20" if you can get the right diameter is a way better option than the oem 21s they sell.
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      02-05-2021, 07:01 PM   #17
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Quote:
Originally Posted by bobbis1 View Post
anyone have OEM rim offsets to find decent set of winters? Seems like 20" if you can get the right diameter is a way better option than the oem 21s they sell.
my 21" OEM 741M were:
21x9.5" ET37 front 275/40R21
21x10.9" ET43 rear 315/35R21

can go to tiresize.com to see how different wheels compare to original and can adjust or look for the offset you want then see if the manufacturer has it (or close to it)

I converted to a 20" square setup with 20x9" ET27 275/45R20. I liked how the front sidewalls came out 10mm, but I used 18mm spacers in the rears to bring them out more.
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      02-05-2021, 11:23 PM   #18
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Quote:
Originally Posted by nZtiZia View Post
my 21" OEM 741M were:
21x9.5" ET37 front 275/40R21
21x10.9" ET43 rear 315/35R21

can go to tiresize.com to see how different wheels compare to original and can adjust or look for the offset you want then see if the manufacturer has it (or close to it)

I converted to a 20" square setup with 20x9" ET27 275/45R20. I liked how the front sidewalls came out 10mm, but I used 18mm spacers in the rears to bring them out more.
Thanks- any photos? Do anyone think/know if any 20” oem sets will clear the calipers?
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      02-06-2021, 07:24 AM   #19
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Quote:
Originally Posted by bobbis1 View Post
Thanks- any photos? Do anyone think/know if any 20” oem sets will clear the calipers?
my car is in the shop getting ppf + ceramic.

OEM sets will likely have a better chance of clearing the calipers since they're OEM. if u have M Sport calipers, still double-check fit with various sources if u can. there have been a few examples of 19" wheels clearing M Sport calipers, but it is very close, so that's why the recommended minimum size w/M Sport is 20".
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      02-06-2021, 08:16 AM   #20
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Quote:
Originally Posted by nZtiZia View Post
my car is in the shop getting ppf + ceramic.

OEM sets will likely have a better chance of clearing the calipers since they're OEM. if u have M Sport calipers, still double-check fit with various sources if u can. there have been a few examples of 19" wheels clearing M Sport calipers, but it is very close, so that's why the recommended minimum size w/M Sport is 20".
Are there diff caliper types for x5m- seems like the only oem non run flat options are 748ms https://www.shopbmwusa.com/product/6...EEL---TIRE-SET

I think another user got these to work on a comp- I just don’t like the black personally.
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      02-06-2021, 08:56 AM   #21
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Quote:
Originally Posted by bobbis1 View Post
Are there diff caliper types for x5m- seems like the only oem non run flat options are 748ms https://www.shopbmwusa.com/product/6...EEL---TIRE-SET

I think another user got these to work on a comp- I just don’t like the black personally.
according to the fitment guide, these don't fit X5M, but again, i would check multiple sources.
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      02-06-2021, 09:31 AM   #22
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Quote:
Originally Posted by nZtiZia View Post
according to the fitment guide, these don't fit X5M, but again, i would check multiple sources.
https://g05.bimmerpost.com/forums/sh...9&postcount=62

prob need spacers given the offsets but does clear apparently
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