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Tires And Wheel/rims Fitment Guide


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Many are referred to the "stance thread" for tire and wheel fitment questions (lots has been tried), but if you are like me you may be craving more.

For those looking to get a bit more technical, i have begun to compile some resources. Feel free to post more or critique and i will add it. Eventually i may even combine all of this into a FAQ article.

-John
--------------—-------------—----------

Circa 2005 bimmerforums but it seems like good stuff.
 

2002's have a Bolt Pattern of 4x100; and a Center Bore/Hub Diameter of 57.1mm

Not nessisarily is the biggest widest tire going to grip the best. Tire grip is mostly based on rubber compound and tread pattern. I once had a set of 185/70-13 Michelins that out cornered the El-cheapo 205/50-15 tires that came with a previous set of wheels I had.

BMW Wheels:

13x5 et28 '74-'76 2002 styled steel
Tires: 165/80-13 stock to 185/70-13

13x5.5 et18 320i styled steel, 21 spoke Alpina look alloy, and BBS look alloy
Tires: 185/70-13 standard, some cars and or tire brands may be able to fit 205/60R13 with these wheels.

14x6 et35 3-series '84-'91 "bottlecap" alloy. Widely avalible used, try craigslist.org, or a local wrecking yard. These fit very well and are concidered to be a good cheap way to get "modern" rubber on a 2002. There are many brands of tires avalible in this size, in MANY different compounds from El-cheapo to gummy race rubber.
Tires: 185/65-14, or 195/60-14.

14x6.5 et30 3-series '87-'91 BBS Sport alloy. Similar to above but BBS look and more expensive.
Tires: 185/65-14 fits well, 195/60-14 may have clearence problems.

Better fitting 14' wheels may be able to fit 205/55-14 tires.

15x7 et24 3-series optional BBS sport alloy and six spoke optional alloy. Great wheels but rare and pricey.
Tires: 195/50-15, 195/55-15, 205/50-15, the 205's will need the fender lips rolled extensively to clear with out tire rubbing.

The offsets for 15x7' wheels on a 2002 is from et22 to et28 with et25 being perfect. With rolling of the fender lips a 205 section tire is possible.

With my 15x7 et28 BBS Nardi wheels I have 205/50-15 Yokohama ES100's with a 3mm spacer up front and none in the rear. For suspension I have H&R springs and Koni shocks. I've also rolled the fender lips for clearence.

http://www.double02salvage.com has good deals on used BMW wheels.

http://www.2002parts.com/html/4-lug_wheels.html has a nice selection of the above wheels.

http://www.panasport.com/ has some very cool classic wheels to fit many cars incl. 2002's from mild to wild.

http://www.tirerack.com/ and http://www.discounttiredirect.com have 15' and 16' wheels to fit 2002's as well as a huge tire selection. They may not have ALL the choices up on the web sites so call them to see if there are more.

High quality wheel spacers and extended wheel studs are avalible here:
http://www.bmpdesign.com/

Most but NOT ALL wheels designed to fit the '84-'91 3-series also fit 2002's except for the most extreme mondo sizes.

Other resources for 2002 info are:
http://www.bayarea02.com/
http://www.2002faq.com/
http://www.2002register.com/

There are still many choices for wheels on 2002's out there. Many corner tire/wheel shops will try sell you wheels that they THINK will fit, but they're probably ment for a Honda or Toyota. Just take your time and make an informed decision and make sure they're going to fit properly, with a money back guarantee if they don't!

Tom Jones
Vacaville, CA

 

This is also an invaluable resource on all the details of tires and wheels. The tire size and offset calculators are incredible, especially the calculator on page 4 that allows you to compare rolling diameter of two different tires.
 

 

The ultimate suspension article for the 02. This is circa 1987 but i still learn something new with every read. Very focused on performance driving, not just "stance." If you have not read this one yet, you are new, or need your head adjusted. I copied some tire and wheel appropriate info.
 

http://www.2002tii.org/kb/324 - essential reading

70-and 60-Series:
These are more contemporary size selections and common fitments to Tii’s are 185/70×13 and 205/60×13. Both sizes will fit on a 6″ wheel without interference l[ you select wheels of the proper offset. Recently, 195/60×14 tires on 318i/325e wheels have turned up on ’02s. These appear to fit, that is clear the front strut and steering knuckle, if the rest of the car and suspension is straight and correct. Another tire size is 185/65×14 but, frankly, this is a retrograde step in load rating and not much of a handling improvement over the 13 inch tires. All these sizes do not really require any special attention to the suspension as they still have fairly generous sidewalls which a: do a fairly good job of absorbing initial shock impacts without transmitting them to the rest of the suspension and car and b: will tolerate some additional camber change during cornering. Therefore the general formula of stiffer springs, shocks and anti-roll bars with negative camber plates mentioned earlier will work very well. If the truth were known, a car with a 205/60 HR 13 tire on a 6″ wheel with this formula is probably the best OVERALL combination of ride and handling. Indeed, for several years I ran 205/60 HR 13s on 6×13 wheels (13mm offset although BMW AG also say 20mm will fit) with the sport front/HD rear Bilsteins, Miller and Norburn Touring springs, negative camber plates and 19mm anti-roll bars and found it to be an outstanding combination.

50-Series:
This is the leading edge of “high-tech” tire design embodying the now familiar “plus two” concept of mounting a very wide low profile tire on a wheel larger in diameter to maintain the original rolling diameter. The typical fitment is a 195/50×15 tire on a 6″ wheel although some tires will fit when mounted on 7″ wheels (20mm offset for either width). This is the combination which requires some deviation from the above formula. These tires have a very short sidewall which translates into very little shock dissipation by the tire sidewalls, especially on a 7″ wheel. Thus a suspension which yields that nice overall balance with a 205/60×13 or 195/60×14 tire is very likely to produce a very harsh ride with a 195/50×15 tire. To get around this, some aftermarket suppliers produce variable or progressive rate springs for the newer series cars. Such springs have a varied wire diameter or coil winding to produce a non-linear spring rate and feature a soft initial segment allowing additional compliance to compensate for that lost from the tire sidewall. Unfortunately, such springs are, to the best of my knowledge, not readily available for the 2002 Tii. Thus, we will not discuss this possibility further and must stick with the original suggestion of stiffer springs with a rate of around 135-145 pounds per inch in the front. However, we can trade a bit of roll stiffness from the firm shocks, particularly at the front where it is pronounced on a two wheel bump, to the anti-roll bars, where it is not as perceptible in two wheel bump motions. For my own car with this tire selection, I retained the Bilstein intermediate (“heavy duty”) rear shocks but have replaced the “sport” front shocks with the conventional “street” setting Bilstein shocks.


Our friends at Ireland Engineering have some excellent advise including backspacing tidbits...
 

http://iemotorsport.com/tech/bmw-wheels.html

The best backspace for our beloved BMW 2002 is just over 4-1/2”. This allows the tire to be under the car as far as possible to allow the most room at the fender lip for larger tires. The tire rubbing on the strut housing is the limiting factor for backspace, but the tie rod end is also a consideration on 13” wheels. It is not a problem to use wheels with a backspace of more than 4-1/2” with a spacer. This can actually work well as it allows you to adjust the tire in the wheel well for the best clearance. There are very few wheels available with the correct backspace for the 2002 but plenty of wheels with the deeper front wheel drive backspaces. We do this all the time on our racecars. I normally do not use spacers more than 1/2” thick. If using spacers, make sure you have long enough studs to have at least 1/2” (8 turns) of thread in the lug nuts.

Many 2002 owners use the 14” wheel from the 1984-1991 3 series (E30) in 14x6 or 14x6.5. These work well but may need a small 1/8” or 1/4” spacer at the front. A tire size of 195x60x14 works well. Larger tires usually require adjustments to the fender. Our easy to install “turbo” flares are a common solution the fender clearance issues.

15”x7” wheels with a 20mm offset are available and are best used with 195x50x15 tires. Larger tires up to 225 will fit the rim but fender modification or flares will be needed.
Wheels from the 1977 to 1982 320i (e21 chassis) do not have enough offset or backspace to fit properly on the 2002. The tires will tend to rub the fender lip. They can be made to work with narrow tires if the car has not been lowered.


The "stance thread" is too valuable of a resource to ignore, even if it's sheer size frusterates me. The original intent is excellent. If you posted in the thread, i would suggest you go back to your original post and update it. Especially in regards to details the original poster requested like offset, spacers, and how it held up over time (things always get softer). On way to use it well is to find a car with the setup you think you want, and message them for details. Tip: "fits" is a subjective term so beware.
 



This post has been promoted to an article Edited by gliding_serpent
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1973 2002Tii (Pacific Blue)

1984 911 3.2 Carrera (Platnum Metallic)

2009 328xi (Black Sapphire Metallic)

2010 Mazda Speed3 (Black Metallic)

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this is a very good place to start when shopping for tires.  I plan on 15x8s at the most (with turbo flares), but its good to know that 15x7 with no mods will work (depending on condition of car).

 

thank you!!!

Beast 02- '74 2002
Beast 35- '11 135i
The Twins!!!
O=00=O

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I think wheel offset or "ET+/-" causes the most confusion, and I still see veteran car guys who get it wrong on a regular basis.

ET stands for the German word "einpresstiefe" which means "offset"... it is the amount that the center section of the wheel inside the cylinder is offset either toward the hub or away from it in millimeters. So a 7" wide wheel with an offset of ET -25 will generally work but so will a 6" wheel with an offset of ET -48. This is because they both have backspacing of 4.5". In a 6" wide wheel ET -13 would work too even though the backspacing is now only 3.5" because the distance outside the wheel center is the same 2.5" as the 7" ET -25 wheel.

This is why it is usually helpful to talk about offset in terms of backspacing and not ET when fitting the widest possible wheels...

2002s can usually accept around 4.5" backspacing on the front and around 5" rear depending on the particular car and suspension setup... on mine it is closer to 4 3/8" in the front.

I think using an offset calculator like this one helps to visualize the issues and can be really helpful to resolve questions about wheel fitment:

http://www.miata.net/garage/tirecalc.html

or

http://www.1010tires.com/WheelOffsetCalculator.asp

Hope this helps...

Edited by Lebowski

Aaron

Walter: You want a toe? I can get you a toe, believe me. There are ways, Dude. You don't wanna know about it, believe me. I'll get you a toe by this afternoon--with nail polish...

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This is going to be a good thread.

Back when I started playing with wheel changes I was taught there were 3 "classifications."

1 - Tire (tyre) - the rubber part

2 - Rim - the metal part

3 - Wheel - the rubber and metal part combined

4 - Bore - hubcentric vs non-hubcentric

Which begs the question, is our bore 57.1 and how important is it to remain hubcentric? Is using a adapter ring a recipe for disaster?

All of that being said. I want to find a rim that is a black center mesh with a nice silver lip. Axis has the design I like. I haven't found a set yet that is 15x7 et25.

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Being hub centric can be very important IF said '02 has E21 front hubs and corresponding brake disks on it. In that situation having hub centric front wheels would be very important.

As original '02s are lug-centric and do not "require" hub centric fitment, BUT that said, you will know that any given wheel will fit over the original hubs correctly if it is 57.1!

Being hub centric on cars (hubs) that require it is all about centering the wheel on the hub and requisite wheel ballance issues would stem from not being centered.

One example would be most of the 5 lug BMW cars out there. Many folks like using E39 (97-03 5-series) wheels on their earlier 5 lug BMWs, but the hub wheel hub centers on the E39 are larger. Many don't know this and fit the wheels anyway causing a unholy vibration that can feel as if the car is trying to shake itself apart at anything over 30mph. The solution is a set of four aluminum adaptor rings, not the greatest but they work. No more out of center issues... Just be sure to lube the hubs and rings with anti seize or you'll have a crappy time changing wheels or brake disks next time....

Tom Jones

BMW mechanic for over 25 years, BMWCCA since 1984
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 585k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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Oh John, I was reading your first quoted section thinking to myself "I think I've read this before, sounds vaguely familiar..." Till I got to the end and realized who wrote it. :)

Tom Jones

BMW mechanic for over 25 years, BMWCCA since 1984
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 585k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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Oh John, I was reading your first quoted section thinking to myself "I think I've read this before, sounds vaguely familiar..." Till I got to the end and realized who wrote it. :)

Thanks for doing the leg work

1973 2002Tii (Pacific Blue)

1984 911 3.2 Carrera (Platnum Metallic)

2009 328xi (Black Sapphire Metallic)

2010 Mazda Speed3 (Black Metallic)

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Aw shucks, it's nothing... Just a lifetime of experience with these cars. :)

Tom Jones

BMW mechanic for over 25 years, BMWCCA since 1984
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 585k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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this is a very good place to start when shopping for tires.  I plan on 15x8s at the most (with turbo flares), but its good to know that 15x7 with no mods will work (depending on condition of car).

 

thank you!!!

"15x7 with no mods" has a lot of conditions that must be met to be true.

 

ride height

strut tube diameter

width and height of tires

offset/backspace

brand of tires

fender lip roll

brake calipers being used

size of rotors

shape of inside of wheel

center bore

Tii, normal, early e21 or late e21 hubs

etc.

2xM3

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...and while ET is negative for 'inset', the e number on a 'wheel' will never be, even though it indicates a negative value.

So e32 will be an ET -32...

 

and offset will be POSITIVE for a negative ET. 

 

t

 

post-32364-0-61057100-1373471453_thumb.j

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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  • 4 weeks later...

I've got some old 14" Australian alloys on my '73 and the original 13" steel wheel in the trunk for the spare.

I'd like to swap out the spare with a 14" steel wheel. Is there a BMW/VW/Mercedes/Mazda 14" steel wheel with the correct offset that I can get so that I've got the same size all around?

Gil. Hernandez
'73 2002 - Fjord Blue
Austin, TX

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