[Pumxee]

Hey guys,

I'm looking to purchase a set of full winter tires and rims for my x6.
My factory set up sticker shows:
275/35 R22 XL
315/30 R22 XL

According to willtheyfit.com, rims should be at least 12inches wide to fit 315 tires. The largest rims I've found are 11inchs. Some at 10.5 as well.

Willtheyfit also indicates a rim width of 10.5 for 275 tires, but the factory set up is 9.5 on 275's.

I'm confused.... Can anyone shed light or educate me on this?

Is it safe to run tire and rims in that setup?

[Auricom]

Originally Posted by Pumxee

Hey guys,

I'm looking to purchase a set of full winter tires and rims for my x6.
My factory set up sticker shows:
275/35 R22 XL
315/30 R22 XL

According to willtheyfit.com, rims should be at least 12inches wide to fit 315 tires. The largest rims I've found are 11inchs. Some at 10.5 as well.

Willtheyfit also indicates a rim width of 10.5 for 275 tires, but the factory set up is 9.5 on 275's.

I'm confused.... Can anyone shed light or educate me on this?

Is it safe to run tire and rims in that setup?

Factory 22" wheel sizes are 9.5 x 22 (275) front and 10.5 x 22 (315) rear.

It's most likely showing you max rim widths for the OEM tire widths.

You need at minimum the OEM factory rim widths for the OEM tire sizes.

For example, you wouldn't want select a rim width size larger than 10.5 for 275 since this will stretch the sidewalls. You can do it but it isn't ideal.

Likewise for the rear, you wouldn't a rim width smaller than 10.5 for 315 which could pinch sidewalls.






Link to OEM Wheel-size

[bforbrian]

Originally Posted by Pumxee

Hey guys,

I'm looking to purchase a set of full winter tires and rims for my x6.
My factory set up sticker shows:
275/35 R22 XL
315/30 R22 XL

According to willtheyfit.com, rims should be at least 12inches wide to fit 315 tires. The largest rims I've found are 11inchs. Some at 10.5 as well.

Willtheyfit also indicates a rim width of 10.5 for 275 tires, but the factory set up is 9.5 on 275's.

I'm confused.... Can anyone shed light or educate me on this?

Is it safe to run tire and rims in that setup?

I've checked out that site and honestly I don't think it has the best information.

A 315/30R22 tire will fit a 10.5" wide wheel perfectly fine, and a 275/35R22 tire will fit a 9.5" wide wheel perfectly fine, as many 742M wheel owners can attest to. BMW wouldn't select these sizes as stock if they weren't appropriate. IMO, you can even get away with one size down (305 and 265 respectively) if you don't want as much of an outward stretch. I probably wouldn't go a size up in tire width, however.

[Ninefourteener]

Yea..... you are looking at "max" rim width for 315 rear and 275 front.

Those are oem tire sizes, and oem widths are 10.5 and 9.5 respectively.

315 on a 12" wide rim will be very stretched. If you are looking for tires for the oem rims, get oem sized tires.

I did a TONNNNNNN of research on different wheel/tire setups before I bought mine (335/25/22 rear on 22x12, 285/30/22 on 22x10.5 front)..... but I researched appropriate wheel/tire combos that work together, and are all within an acceptable overall diameter from eachother..... from 9 inches to 12, and everything in between. I have it all written down in my office. If you're interested, I'll post it all up.

If you're just interested in replacing oem tires.... just go with oem size. Best, safest bet.

[Pumxee]

Originally Posted by Ninefourteener

Yea..... you are looking at "max" rim width for 315 rear and 275 front.

Those are oem tire sizes, and oem widths are 10.5 and 9.5 respectively.

315 on a 12" wide rim will be very stretched. If you are looking for tires for the oem rims, get oem sized tires.

I did a TONNNNNNN of research on different wheel/tire setups before I bought mine (335/25/22 rear on 22x12, 285/30/22 on 22x10.5 front)..... but I researched appropriate wheel/tire combos that work together, and are all within an acceptable overall diameter from eachother..... from 9 inches to 12, and everything in between. I have it all written down in my office. If you're interested, I'll post it all up.

If you're just interested in replacing oem tires.... just go with oem size. Best, safest bet.

I'm looking to purchase a full set of tires and rims for winters because I don't want to run 22's in the winter. The ideal size is 20 for Calgary (shitty roads and bad upkeep during snow season)

Would really appreciate if you could post your research!

[bforbrian]

Originally Posted by Ninefourteener

Yea..... you are looking at "max" rim width for 315 rear and 275 front.

Those are oem tire sizes, and oem widths are 10.5 and 9.5 respectively.

315 on a 12" wide rim will be very stretched. If you are looking for tires for the oem rims, get oem sized tires.

I did a TONNNNNNN of research on different wheel/tire setups before I bought mine (335/25/22 rear on 22x12, 285/30/22 on 22x10.5 front)..... but I researched appropriate wheel/tire combos that work together, and are all within an acceptable overall diameter from eachother..... from 9 inches to 12, and everything in between. I have it all written down in my office. If you're interested, I'll post it all up.

If you're just interested in replacing oem tires.... just go with oem size. Best, safest bet.

What offsets are your wheels?

[Ninefourteener]

Originally Posted by Pumxee

I'm looking to purchase a full set of tires and rims for winters because I don't want to run 22's in the winter. The ideal size is 20 for Calgary (shitty roads and bad upkeep during snow season)

Would really appreciate if you could post your research!

Totally understand. All my research was on aftermarket 22s though.

I bought my car with 21s, and had a set of oem-sized all-seasons waiting in the garage to replace the crappy Continental summer tires. The OEM 21s are now my "winter" tires for the same reason as you.

Originally Posted by bforbrian

What offsets are your wheels?

I'll tell you when they arrive. I made the conscious decision not to make a choice from limited online forums, but rather to let the experts at Vossen decide what the appropriate offset for my car is, with the widths I wanted.

[bforbrian]

Originally Posted by Ninefourteener

Totally understand. All my research was on aftermarket 22s though.

I bought my car with 21s, and had a set of oem-sized all-seasons waiting in the garage to replace the crappy Continental summer tires. The OEM 21s are now my "winter" tires for the same reason as you.

I'll tell you when they arrive. I made the conscious decision not to make a choice from limited online forums, but rather to let the experts at Vossen decide what the appropriate offset for my car is, with the widths I wanted.

Nice! I'll be ordering a set of Vossens myself, except I'll be making all the calculations.... so curious how your sizing will look now

[Pro55]

Trouble is there is very limited choice on 22 inch winters. I have the 22 for the summer and put 20 on for the winter with all squared up so 4 of the same. These AEZ also fit the Porsche Cayenne. Have just got the bmw centre caps to finish them off. Not fitted yet.

[Sanchos]

Hey there, just wondering when you guys go to after market wheels, did you add hub centric rings of the bore was different?

I have a 2019 X5, and looking to place on 20's for winter (Asanti ABL-11 - 20x9, 72.6 / +35 mm offset).

The BMW centre bore is 66.6.

Thanks,
SG

Originally Posted by Auricom

Factory 22" wheel sizes are 9.5 x 22 (275) front and 10.5 x 22 (315) rear.

It's most likely showing you max rim widths for the OEM tire widths.

You need at minimum the OEM factory rim widths for the OEM tire sizes.

For example, you wouldn't want select a rim width size larger than 10.5 for 275 since this will stretch the sidewalls. You can do it but it isn't ideal.

Likewise for the rear, you wouldn't a rim width smaller than 10.5 for 315 which could pinch sidewalls.

Attachment 2376025


Link to OEM Wheel-size

Attachment 2376008

[Pumxee]

Originally Posted by Sanchos

Hey there, just wondering when you guys go to after market wheels, did you add hub centric rings of the bore was different?

I have a 2019 X5, and looking to place on 20's for winter (Asanti ABL-11 - 20x9, 72.6 / +35 mm offset).

The BMW centre bore is 66.6.

Thanks,
SG

Did you find an answer to this question?

[LexxM3]

Originally Posted by Pumxee

Did you find an answer to this question?

I think they got it answered in another thread, but in summary, yes, absolutely, without hesitation, you should either exactly match the hub centres diameter or use an exact well fitting adapter ring to match the hub centres diameters. In a hub-centric design (the right way to do it), you want most of the car weight to ride on the hub centres, not the bolts.

[Pumxee]

Originally Posted by LexxM3

I think they got it answered in another thread, but in summary, yes, absolutely, without hesitation, you should either exactly match the hub centres diameter or use an exact well fitting adapter ring to match the hub centres diameters. In a hub-centric design (the right way to do it), you want most of the car weight to ride on the hub centres, not the bolts.

What if the center bore is 66.5 for the wheels I want to buy?

Would I still need an adapter or could I get away with that?

[LexxM3]

Originally Posted by Pumxee

What if the center bore is 66.5 for the wheels I want to buy?

Would I still need an adapter or could I get away with that?

There is really no way to make a 0.1mm adapter ring :-) (yes, I know you can't adapt from smaller wheel hub to larger car hub with a ring, it's a joke :-). Anyways, 0.1mm is considered within margin of tolerance, so that will be fine, maybe a little tight on the hub at worst.

[Pumxee]

Originally Posted by LexxM3

There is really no way to make a 0.1mm adapter ring :-) (yes, I know you can't adapt from smaller wheel hub to larger car hub with a ring, it's a joke :-). Anyways, 0.1mm is considered within margin of tolerance, so that will be fine, maybe a little tight on the hub at worst.

A more confusing question is whether 66.0 wheel vs 66.6 car is acceptable and the answer is probably not and you still can't make an adapter ring for 0.6mm either. There are so many "standards". Luckily you don't have to consider this.

Thanks for the info! I think I am going to settle on the following: what do you think?

275/45/20 with 9inch rims 72.6 bore (will use an 8mm ring)
305/40/20 with 10.5 rims on the rear (ring again)

Screen shot attached!

[LexxM3]

Originally Posted by Pumxee

Thanks for the info! I think I am going to settle on the following: what do you think?

275/45/20 with 9inch rims 72.6 bore (will use an 8mm ring)
305/40/20 with 10.5 rims on the rear (ring again)

It sounds like your going custom fit for you your wheels and doing the calcs yourself rather than having BMW dealer or pro shop do it for you. In that case, there is a lot more than just hub rings to consider. You need to look at fit over the brakes, offset, wheel hub thickness relative to stock to determine if you need different bolts, etc. A bigger discussion that just hub centricity.

Update: you posted full specs now, I would have to do some calcs on the offsets to see if that works, don't quite have time right now. About fitting over brakes and length of bolts, that either requires input from a pro or manufacturer, or test fitting.

By the way, thanks for quoting quickly and capturing my stupid brain glitch about hub rings for wheels with smaller hub centres than the car. LOL.

[LexxM3]

Originally Posted by Pumxee

Thanks for the info! I think I am going to settle on the following: what do you think?

275/45/20 with 9inch rims 72.6 bore (will use an 8mm ring)
305/40/20 with 10.5 rims on the rear (ring again)

Screen shot attached!

Ok, on offsets, you picked rims matching stock widths (which are 9Jx20 ET35 / 10.5Jx20 ET40) which simplifies things a lot. Your front offset matches exactly and rear offset is close enough. So from the point of view of offsets, you're good.

For hub rings, yes you would need 72.6 OD to 66.6 ID adapter rings (so that's a 6mm adapter ring, but they are usually spec'd OD/ID rather than thickness since thickness is insufficient spec). These definitely exist, but can sometimes be tricky to find (a wheel shop should be able to find for you). I would go with aluminum alloy rather than plastic rings on an SUV.

Bolt lengths and fit over brakes requires more info or test fitment (because your offsets match so closely, there is a good chance that your stock bolts will be fine as well).

I noticed that your order page says "nuts" and that you're paying extra for those. German cars don't use lug nuts, but rather bolts, so the nuts are useless to you.

[Pumxee]

Originally Posted by LexxM3

Ok, on offsets, you picked rims matching stock widths (which are 9Jx20 ET35 / 10.5Jx20 ET40) which simplifies things a lot. Your front offset matches exactly and rear offset is close enough. So from the point of view of offsets, you're good.

For hub rings, yes you would need 72.6 OD to 66.6 ID adapter rings (so that's a 6mm adapter ring, but they are usually spec'd OD/ID rather than thickness since thickness is insufficient spec). These definitely exist, but can sometimes be tricky to find (a wheel shop should be able to find for you). I would go with aluminum alloy rather than plastic rings on an SUV.

Bolt lengths and fit over brakes requires more info or test fitment (because your offsets match so closely, there is a good chance that your stock bolts will be fine as well).

I noticed that your order page says "nuts" and that you're paying extra for those. German cars don't use lug nuts, but rather bolts, so the nuts are useless to you.

Thanks for the info! I called a competing wheel/tire company to talk about the rims and wheels and fit and they also confirmed everything will fit fine as long as I have the ring.

Going to pull the trigger on this I think!

[LexxM3]

Originally Posted by Pumxee

Thanks for the info! I called a competing wheel/tire company to talk about the rims and wheels and fit and they also confirmed everything will fit fine as long as I have the ring.

Going to pull the trigger on this I think!

If online, eBay is likely the most flexible source. These look nice: https://www.ebay.ca/itm/281349256614

[Pumxee]

Originally Posted by LexxM3

If online, eBay is likely the most flexible source. These look nice: https://www.ebay.ca/itm/281349256614

Those are the ones I am looking at too. Seem good! Just dropped $3300 CAD on those tires. Don't want to spend $50 more hahaha

[LexxM3]

Originally Posted by Pumxee

Those are the ones I am looking at too. Seem good! Just dropped $3300 CAD on those tires. Don't want to spend $50 more hahaha

Italian-sounding American wheels deserve (possibly) Italian rings from the US :-).

[Pumxee]

Originally Posted by LexxM3

Italian-sounding American wheels deserve (possibly) Italian rings from the US :-).

Hey - I actually cancelled that order because I was able to to find two better deals online.

Wanted to get your opinion on them before pulling the trigger on either.

Both will cost about $3000.

Option 1: 20inch rims on Michellin Alipne Pa5 winter tires
275/45/20 on the front
305/40/20 on the rear



Option 2: 21inch rims on Continental ContiWinterContact Tires
275/40/21 on the front
305/35/21 on the rear


Guess my question is regarding which would be a better winter setup? The 20inch rims on the alpin 5's or the 21inch rims on the conti's (I can also get these on the alpin 5s? So really it's just a question about wether 20's are better or 21's for the winter? Is there a big difference between a 275/45/20 and a 275/40/21 in terms or ride quality, comfort, grip, damage from packed snow/ice?