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      08-26-2012, 05:18 PM   #1
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Exclamation cons for being using hub rings in front wheels

anyone know what are the cons of being using hub rings for the front wheels of a vehicle example: bmw x6 50i????
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      08-26-2012, 07:04 PM   #2
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puts more stress on the wheel bearing.
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      08-26-2012, 07:05 PM   #3
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If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.
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      08-26-2012, 10:44 PM   #4
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Quote:
Originally Posted by enycerz
puts more stress on the wheel bearing.
How does this affect my suv or driving feeling?
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      08-26-2012, 10:48 PM   #5
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Quote:
Originally Posted by enycerz View Post
puts more stress on the wheel bearing.
What
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      08-26-2012, 10:49 PM   #6
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Quote:
Originally Posted by calintexas
If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.
Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?
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      08-26-2012, 10:54 PM   #7
GregW / Oregon
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Quote:
Originally Posted by rodrigoventura View Post
Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?
Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.
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      08-26-2012, 11:07 PM   #8
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Quote:
Originally Posted by GregW / Oregon
Quote:
Originally Posted by rodrigoventura View Post
Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?
Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.
They wont cause vibration at all?
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      08-27-2012, 12:06 AM   #9
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Quote:
Originally Posted by enycerz View Post
puts more stress on the wheel bearing.
He's talking about wheel spacers used to increase track (push the wheels outboard) which is not the question you asked.

Quote:
Originally Posted by GregW / Oregon View Post
Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.
I'll admit that my friend is an animal. The car is heavily modified (tune, intake, aftermarket headers, and catless exhaust, plus other stuff I don't know about). He's tracked it a few times. It's likely that an X6 in normal street use would be fine. If you can only get the plastic pilot adaptors, just buy a second set in case you have problems over time. They are very low cost. It's best just to get wheels with the correct pilot hole if you can. M3's seem to be very sensitive to the accuracy of the hub/wheel assembly. I don't know about the X6.
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      08-28-2012, 01:06 PM   #10
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calintexas:

thanks a lot for your reply.

the replica wheels seller stated that the material of the hub rings are polycarbonate.

i really like to stick to OEM, but im having several problems having a dealer ship overseas, i have had no luck that's why im looking for other alternatives, and the replica sellers seems the only one...

i just returned a 2012 m3 because of the differencial turn noise, and i really don't want to have problems with the new x6, thats why im so worried about install this wheels due to vibration or other problems...



Quote:
Originally Posted by calintexas View Post
He's talking about wheel spacers used to increase track (push the wheels outboard) which is not the question you asked.



I'll admit that my friend is an animal. The car is heavily modified (tune, intake, aftermarket headers, and catless exhaust, plus other stuff I don't know about). He's tracked it a few times. It's likely that an X6 in normal street use would be fine. If you can only get the plastic pilot adaptors, just buy a second set in case you have problems over time. They are very low cost. It's best just to get wheels with the correct pilot hole if you can. M3's seem to be very sensitive to the accuracy of the hub/wheel assembly. I don't know about the X6.
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      08-28-2012, 01:13 PM   #11
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If these wheels are for an X5 and youre using them for an X6, you only need the hub rings for the rears. The front bores are identical.
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      08-28-2012, 01:27 PM   #12
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I have used plastic centering rings and it is fine, mine didn't melt (no tracking). The rings are only there to center the wheel before tightening to prevent vibration. After that the load is carried by the clamping force of the wheel to the hub. They won't effect your bearings.
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      08-28-2012, 04:30 PM   #13
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Poleposition:

Thank you very much for your reply.
I have the following answer from the seller:

**************
The reason the wheels in this auction need the hub ring is because they also fit the x5 and the x5 has 74.1 hub bore. Your x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and you will need to use the rings for the front. If you are ready to purchase let me know.

**************

you telling rears hes telling fronts?? im little confused, if it was for rears i wouldn't be that much worried, but he is telling that they are needed for the front, thatīs makes me worried little more because of the direction/vibration

Quote:
Originally Posted by Poleposition View Post
If these wheels are for an X5 and youre using them for an X6, you only need the hub rings for the rears. The front bores are identical.
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      08-28-2012, 04:38 PM   #14
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I understand your confusion but I am telling what I know from experience. Ive had 3 X5's and currently have an X6. Look below:



1 Series E81/82/87/88 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 35-45

3 Series E21 = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread. ET 12-20

3 Series E30 = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread. ET 15-35
3 Series E30 M3 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 27-30

3 Series E36 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-47
3 Series E36 M3 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 35-47

3 Series E46 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-47
3 Series E46 M3 = PCD 5x120 centre bore 72.5mm and M12x1.5 bolt thread. Fronts ET 30-47, Rears ET 20-27,

3 Series E90/91/92/93 = PCD 5x120, Centre bore 72.5mm and M12x1.5 bolt thread. ET 30-45
3 Series E90/92/93 M3 = PCD 5x120, Centre bore 72.5mm and M12x1.5 bolt thread. ET 34-37

5 Series E28 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 18-25

5 Series E34 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 13-20
5 Series E34 M5 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

5 Series E39 = PCD 5x120, centre bore 74.0mm and M12x1.5 bolt thread. ET 15-25
5 Series E39 M5 = PCD 5x120, centre bore 72.5.0mm and M12x1.5 bolt thread. ET 15-25

5 Series E60/61 = PCD 5x120 centre bore 72.5mm and M12x1.5 bolt thread. ET 15-32
5 Series E60 M5 (Saloon) = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-32
5 Series E61 M5 (Touring) = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-32

6 Series E24 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

6 Series E63/64 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 14-20
6 Series E63/64 M6 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-20

7 Series E32 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 19-26

7 Series E38 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 13-25

7 Series E65/66/67/68 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 10-25

8 Series E31 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

X3 E83 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 40-45

X5 E53 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 40-45

X5 E70 = PCD 5x120, centre bore 74.0mm and M14x1.25 bolt thread. ET 37-53

X6 E71 = PCD 5x120, centre bore FRONT 74.0mm, centre bore REAR 72.5mm and M14x1.5 bolt thread
.

Z1 E30Z = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread.

Z3 E36 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-40

Z3 M Coupe/M Roadster = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

Z4 E85 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 45-52

Z8 E52 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.
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      08-28-2012, 10:21 PM   #15
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Hubcentric rings are fine and should be used if the bore of the wheel is larger than the hub. You want the load on the hub, not on the lugs.

Get a couple extras in case you loose them/break them or whatever.


/Thread
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      08-29-2012, 09:21 PM   #16
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Quote:
Originally Posted by kaiv View Post
Hubcentric rings are fine and should be used if the bore of the wheel is larger than the hub. You want the load on the hub, not on the lugs.

Get a couple extras in case you loose them/break them or whatever.


/Thread
thanks a lot for sharing, i will try to get them in aluminum alloy
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      08-29-2012, 09:28 PM   #17
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so i would need M14x1.25 bolt thread to fit these replica wheels plus the 72.5mm to 74.0mm hub centric ring???


Quote:
Originally Posted by Poleposition View Post
I understand your confusion but I am telling what I know from experience. Ive had 3 X5's and currently have an X6. Look below:



1 Series E81/82/87/88 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 35-45

3 Series E21 = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread. ET 12-20

3 Series E30 = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread. ET 15-35
3 Series E30 M3 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 27-30

3 Series E36 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-47
3 Series E36 M3 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 35-47

3 Series E46 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-47
3 Series E46 M3 = PCD 5x120 centre bore 72.5mm and M12x1.5 bolt thread. Fronts ET 30-47, Rears ET 20-27,

3 Series E90/91/92/93 = PCD 5x120, Centre bore 72.5mm and M12x1.5 bolt thread. ET 30-45
3 Series E90/92/93 M3 = PCD 5x120, Centre bore 72.5mm and M12x1.5 bolt thread. ET 34-37

5 Series E28 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 18-25

5 Series E34 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 13-20
5 Series E34 M5 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

5 Series E39 = PCD 5x120, centre bore 74.0mm and M12x1.5 bolt thread. ET 15-25
5 Series E39 M5 = PCD 5x120, centre bore 72.5.0mm and M12x1.5 bolt thread. ET 15-25

5 Series E60/61 = PCD 5x120 centre bore 72.5mm and M12x1.5 bolt thread. ET 15-32
5 Series E60 M5 (Saloon) = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-32
5 Series E61 M5 (Touring) = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-32

6 Series E24 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

6 Series E63/64 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 14-20
6 Series E63/64 M6 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 12-20

7 Series E32 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 19-26

7 Series E38 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 13-25

7 Series E65/66/67/68 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 10-25

8 Series E31 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

X3 E83 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 40-45

X5 E53 = PCD 5x120, centre bore 72.5mm and M14x1.5 bolt thread. ET 40-45

X5 E70 = PCD 5x120, centre bore 74.0mm and M14x1.25 bolt thread. ET 37-53

X6 E71 = PCD 5x120, centre bore FRONT 74.0mm, centre bore REAR 72.5mm and M14x1.5 bolt thread
.

Z1 E30Z = PCD 4x100, centre bore 57.0mm and M12x1.5 bolt thread.

Z3 E36 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 30-40

Z3 M Coupe/M Roadster = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.

Z4 E85 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread. ET 45-52

Z8 E52 = PCD 5x120, centre bore 72.5mm and M12x1.5 bolt thread.
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      08-30-2012, 01:19 PM   #18
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Quote:
Originally Posted by calintexas View Post
If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.
The goodnews here is that the Forgestars are hubcentric now for BMWs. Why did he get the plastic ring? I always have gotten the aluminum ones.

Dave
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      08-30-2012, 06:01 PM   #19
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Quote:
Originally Posted by Dave07997S View Post
The goodnews here is that the Forgestars are hubcentric now for BMWs. Why did he get the plastic ring? I always have gotten the aluminum ones.

Dave
I think he was stuck with what was available locally. I'm pretty sure that he didn't realize that the pilot bore didn't match at first and was having vibration issues. His installer apparently figured it out. He ended up getting Modulare's from Wheel Experts. His car is in the gallery section of their site.
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