5mm spacer and hub centric ring

C408 · 03-02-2019, 06:42 PM

so I was able to fit a 5mm spacer as well as the hub centric ring on the hub but theres a bit of overhang. I've got at least 5mm or so of the ring on the hub but with a bit of overhang. havent been able to drive the car yet since I'm doing the headlights but what's the take on that? should I be fine or are there some implications of not having the ring butted up against the hub firmly I'm not thinking about? [IMG]undefined[/IMG][IMG]undefined[/IMG]

C408 · 03-02-2019, 10:06 PM

bump..... anyone see anything wrong with that not sitting completely flush. I'm aware I could possibly get a little wheel vibration but my thinking is its butted flush against the spacer so it should probably be fine. wheres that super critical person to tell me the 1% chance my wheel could explode or something lol.

snedanator · 03-03-2019, 02:14 PM

Theoretically thinking there shouldn't be a problem as the ring is only to centre the wheel and the face of the inside of the wheel will be flush against the spacer and the bolts will hold it onto that face. So it should be fine. Can I ask why the ring is needed? Is it cause the bore of the alloy wheel is different from the original hub ring?

C408 · 03-03-2019, 02:52 PM

correct, it just fills the gap from an aftermarket hub bore to sit properly on the hub. eliminates wheel wobble while driving at high speed. I didnt think it would be an issue either since theres plenty of it on there and its flush against the spacer but I'm new to bmw cars and they're far finickier than hondas so always best to measure twice and cut once.

dublin14 · 03-07-2019, 07:16 AM

What year is this on? I would like 5mm to fill out the rear myself on my 08 E92.

C408 · 06-21-2019, 04:26 PM

Quote:

Originally Posted by dublin14

What year is this on? I would like 5mm to fill out the rear myself on my 08 E92.

it's on a 2006 325i sedan.

Volasko · 06-26-2019, 10:13 AM

I asked a similar question when I was adding 8mm spacers, which did not have a ring extension (wouldn't work) and I was told the following points:

The ring is meant to help center the wheel, not take any loading during driving. The loading is handled by the bolts/studs. Now because the ring isn't centering the wheel when installing it was suggested that when torquing the wheel to slowly creep up to the torque value, ie) start at 40 lb/ft, then 60, the 88 or whatever your spec is. This will help ensure the tapered bolts are properly centering the wheel and you don't clamp it down off-center by accident.

06-26-2019, 01:09 PM

*rubs eyes and reads all replies over again*

wtf are half you guys even talkin about?

Since when did BMW move from a HUB centric design to LUG centric design? Of course the hub centric rings are necessary because the hub bares the weight of the vehicle! Hence the term HUB CENTRIC.

Quote:

Originally Posted by C408

it's on a 2006 325i sedan.

OP since you have a very early E90 (one of the first) what I think might be happening here is that the hub is lip on your car is longer than on most other (newer) cars. Here's a perfect example:
https://www.e90post.com/forums/showthread.php?t=602582

It's also why Turner makes this disclaimer:
10mm Fitment Note: You must be very careful when fitting 10mm spacers to any BMW. Since the depth of the hubcentric lip will vary, you risk bottoming out of the spacer before it sits flush with the hub. This will leave a gap between the spacer and the hub, seriously compromising the strength of the spacer. The lip on the car may need to be shaved down so the 10mm spacer will fit flush on the rotor hat.

Long story short, I would measure it to be sure. Having "overhang" sounds like a not so smart idea, especially on wheels which are expected to turn your vehicle.

Tr1ppy · 06-27-2019, 06:18 AM

I always thought with such a small spacer (5mm) that a hub-centric ring is not required.

H&R offer 5mm spacers without the hubcentric ring and they call it a "DR system" spacer whatever that means.

pennychow · 06-04-2020, 09:52 PM

Quote:

Originally Posted by Tr1ppy

I always thought with such a small spacer (5mm) that a hub-centric ring is not required.

H&R offer 5mm spacers without the hubcentric ring and they call it a "DR system" spacer whatever that means.

is there any 5mm H&R spacer for BMW?

Tr1ppy · 06-05-2020, 06:15 AM

Quote:

Originally Posted by pennychow

is there any 5mm H&R spacer for BMW?

Sold out at the moment but can be bought here as well as other stores
https://www.demon-tweeks.com/h-r-pai...9e0c09fdc50cfe

nsjames · 06-05-2020, 11:36 AM

ST makes 5mm spacers with hub centric ring inserts.

pennychow · 06-07-2020, 10:32 PM

Quote:

Originally Posted by nsjames

ST makes 5mm spacers with hub centric ring inserts.

how can it be possible....

just read their official webpage.. only 10mm or above have extended hub centric ring ..

nsjames · 06-09-2020, 10:09 AM

you're correct, I thought the plastic ring inserts they were using also had a lip.

03-02-2019, 06:42 PM	#1
C408 New Member 1 Rep 13 Posts Drives: 2006 325i 6 speed Join Date: Jan 2019 Location: Unites States iTrader: (0)	5mm spacer and hub centric ring so I was able to fit a 5mm spacer as well as the hub centric ring on the hub but theres a bit of overhang. I've got at least 5mm or so of the ring on the hub but with a bit of overhang. havent been able to drive the car yet since I'm doing the headlights but what's the take on that? should I be fine or are there some implications of not having the ring butted up against the hub firmly I'm not thinking about? [IMG]undefined[/IMG][IMG]undefined[/IMG] Attached Images __________________ Low > Fast
	Appreciate 0 Tweet Quote

03-02-2019, 10:06 PM	#2
C408 New Member 1 Rep 13 Posts Drives: 2006 325i 6 speed Join Date: Jan 2019 Location: Unites States iTrader: (0)	bump..... anyone see anything wrong with that not sitting completely flush. I'm aware I could possibly get a little wheel vibration but my thinking is its butted flush against the spacer so it should probably be fine. wheres that super critical person to tell me the 1% chance my wheel could explode or something lol. __________________ Low > Fast
	Appreciate 0 Quote

03-03-2019, 02:14 PM	#3
snedanator Lieutenant 97 Rep 551 Posts Drives: e93 335i le mans blue Join Date: Jul 2015 Location: Falkirk . Scotland iTrader: (0)	Theoretically thinking there shouldn't be a problem as the ring is only to centre the wheel and the face of the inside of the wheel will be flush against the spacer and the bolts will hold it onto that face. So it should be fine. Can I ask why the ring is needed? Is it cause the bore of the alloy wheel is different from the original hub ring?
	Appreciate 0 Quote

03-03-2019, 02:52 PM	#4
C408 New Member 1 Rep 13 Posts Drives: 2006 325i 6 speed Join Date: Jan 2019 Location: Unites States iTrader: (0)	correct, it just fills the gap from an aftermarket hub bore to sit properly on the hub. eliminates wheel wobble while driving at high speed. I didnt think it would be an issue either since theres plenty of it on there and its flush against the spacer but I'm new to bmw cars and they're far finickier than hondas so always best to measure twice and cut once. __________________ Low > Fast
	Appreciate 0 Quote

03-07-2019, 07:16 AM	#5
dublin14 Banned 148 Rep 388 Posts Drives: Bmw 335i- F150 FX4- Audi A4 Join Date: Apr 2011 Location: Toronto-Canada iTrader: (0)	What year is this on? I would like 5mm to fill out the rear myself on my 08 E92.
	Appreciate 0 Quote

06-26-2019, 10:13 AM	#7
Volasko Colonel 705 Rep 2,605 Posts Drives: 06 330i E90, 18 530xe G30 Join Date: Dec 2010 Location: Toronto iTrader: (2) Garage List 2018 BMW 530e M Sport [9.00] 2006 BMW E90 330i [8.28]	I asked a similar question when I was adding 8mm spacers, which did not have a ring extension (wouldn't work) and I was told the following points: The ring is meant to help center the wheel, not take any loading during driving. The loading is handled by the bolts/studs. Now because the ring isn't centering the wheel when installing it was suggested that when torquing the wheel to slowly creep up to the torque value, ie) start at 40 lb/ft, then 60, the 88 or whatever your spec is. This will help ensure the tapered bolts are properly centering the wheel and you don't clamp it down off-center by accident.
	Appreciate 0 Quote

06-27-2019, 06:18 AM	#9
Tr1ppy Second Lieutenant 36 Rep 278 Posts Drives: E93 330i M Sport Join Date: Mar 2015 Location: North West, UK iTrader: (0)	I always thought with such a small spacer (5mm) that a hub-centric ring is not required. H&R offer 5mm spacers without the hubcentric ring and they call it a "DR system" spacer whatever that means.
	Appreciate 0 Quote

06-05-2020, 11:36 AM	#12
nsjames Brigadier General 2440 Rep 4,330 Posts Drives: 08 328xi Touring Join Date: May 2017 Location: ohio iTrader: (0)	ST makes 5mm spacers with hub centric ring inserts.
	Appreciate 0 Quote

06-09-2020, 10:09 AM	#14
nsjames Brigadier General 2440 Rep 4,330 Posts Drives: 08 328xi Touring Join Date: May 2017 Location: ohio iTrader: (0)	you're correct, I thought the plastic ring inserts they were using also had a lip.
	Appreciate 0 Quote