Wheel + Tire Sizes / Options

[rsporsche]

14" Wheels


Tire Size Chart
<< Note - tire diameter / revolutions per mile vary between manufacturers >>

175/14 –- dia. 24.7”, width 7" / tread width 4.8", circ 77.7”, rev / mile = 834
195/70-14 -– dia. 24.7”, width 7.9" / tread width 5.7", circ 77.7”, rev / mile = 839
205/70-14 -- dia. 25.1", width 8.2" / tread width 6.7", rev / mile = 821
225/60-14 -- 24.7”, width 9.2" / tread width 7.6", circ 77.7”, rev / mile = 842 <rear only, caution - tire is over 9" wide>

Vintage Tires / Vendors
Michelin XWX - (Coker / Longstone / Lucas Classic)
Pirelli Cinturato CN36 - (Tirerack / Longstone / Lucas Classic)
Vredestein Sprint Classic - (Tirerack / Coker / Longstone / Lucas Classic)
Dunlop Sport Classic - (Coker)
BF Goodrich Radial T/A - (Tirerack / Coker / Longstone)
Blockleys - ( Lucas Classic)

Stock Wheels - CS
14: diameter / 6" width / ET11
Tire Size - 175 - 14 (early coupes)
Tire Size - 195 / 70 - 14
Alternate tire size - 205 / 70 - 14
Alternate tire size - 225 / 60 - 14
1969 - 1973

FPS 20 Spoke Alpina style
14" diameter / 6" width / ET11
1974-1975

Stock Wheels - CSL
14" diameter / 7" width / ET11
Tire Size - 195/70-14
Alpina 5 Holes (later versions have 10 holes)

Note: Tires are Pirelli CN36

There are apparently 3 different versions of the 5 hole Alpina wheels (all relatively rare and the correct wheel for a CSL, followed by a 10 hole version (the most prevalent). in the 5 hole versions the location of the ALPINA logo in relation to the valve stem hole tends to vary. if the valve stem hole is at "6:00", the 3 versions of ALPINA have appeared at 11:30 / 2:00 and 7:00. as you see on the one with the BMW logo, the ALPINA is at 2:00. the entire set that was just sold were all at 2:00 and were manufactured 4/73. so not only should you look for a set that has the same date code, you want to be sure that the ALPINA / valve stem hole is consistent.

version 1 - no bmw logo - p/n 2800206 / no KBA number - this is correct for the Carb CSL

version 2 - no bmw logo - p/n 2800200 or xx206 / KBA # 1110344 - this is correct for the 2275xxx CSL - the overall pic of this wheel had the alpina logo at '2:00'

this v2 wheel has the alpina logo at '11:30'

the late version - with BMW logo - alpina p/n 2800206 / KBA #1110345 - these wheels came on the BAT cars (my understanding is that the date code started in early 1973 for these. the one below i believe is 4/73, and the alpina logo is at '2:00' - i have seen pics of the v3 wheels at 11:30 / 2:00 / 7:00

it has also been brought to my attention that the center of the v3 wheel should be gray, not black - this v3 wheel also has alpina at 2:00

and finally, there is the 10 hole Alpina wheel the attached image was made by Ronal for Alpina in 1975. Alpina has also acknowledged the production of an Alpina wheel by FPS that has an engraved Alpina. (the wheel is still in current production by BBS - sold by W+N and a few others)

BBS Mahle
14" diameter / 7" width / ET22
<< Note - longer studs or longer lugs are required on e9 coupes due to thicker mounting surfaces of the BBS Mahle wheels >>
ARP 100-7715 - can be purchased from SummitRacing.com

Other 14" Wheels

FPS 20 Spoke "Turbine"
e12/e23
14" diameter / 6" width / ET11

FPS "Alpina" style wheel (looks like a CSL Wheel)
e24
14" diameter / 7" width / ET11

Vial ”Alpina“ style wheel
14” diameter, 7” width

<< NOTE - Refer to the FAQ Speedo section for information on what alternate tire sizes might do to how your speedo reads / depending on your tranny / diff gear - https://e9coupe.com/forum/threads/speedometer-and-differential-ratios.35162/ >>

 

[rsporsche]

15" Wheels
<< NOTE - Refer to the FAQ Speedo section for information on what alternate tire sizes might do to how your speedo reads / depending on your tranny / diff gear - https://e9coupe.com/forum/threads/speedometer-and-differential-ratios.35162/ >>

<< NOTE - Care must be exercised when installing wider wheels + tires to prevent rubbing or catching the fender lip. It is widely recommended that fender lips be rolled AND negative camber plates installed >>

Tire Size Chart
<< Note - tire diameter / revolutions per mile vary between manufacturers >>

205/60-15 -– dia. 24.7”, width 8.2" / tread width 6.8", circ. 77.6”, rev / mile = 842
215/60-15 -- dia. 25.1", width 8.7" / tread width 7.3", rev / mile = 827
225/55-15 – dia. 24.7”, 77.7” circ, rev / mile = 842 <caution - tire is 9" wide - not many tires available in this size>

OZ - 'Alpina Style'
15" diameter / 7" width / et

BMW - Style 5 (BBS RZ)
e34 5 series
15" diameter / 7" width / et20

Weds Bavaria
2 piece wheels
15" diameter / 7" width / et 20

BMW - Style 29
e34 + e39 5 series (may require hub-centric rings and 5mm to 8mm spacers)
15" diameter / 7" width / et 20

BMW - Style 32
e39 5 series (may require hub-centric rings and 5mm to 8mm spacers)
15" diameter / 7" width / et20

BBS - RX
various sizes + widths

 

[rsporsche]

16" Wheels
<< NOTE - Refer to the FAQ Speedo section for information on what alternate tire sizes might do to how your speedo reads / depending on your tranny / diff gear - https://e9coupe.com/forum/threads/speedometer-and-differential-ratios.35162/ >>

<< NOTE - Care must be exercised when installing wider wheels + tires to prevent rubbing or catching the fender lip. It is widely recommended that fender lips be rolled AND negative camber plates installed >>

Tire Size Chart
<< Note - tire diameter / revolutions per mile vary between manufacturers >>

205/55-16 -– dia. 24.9”, width 8.4" / tread width 6.8", circ. 78.2”, rev / mile = 834
225/50-16 -– dia. 24.9”, width 9.2" / tread width 7.6", circ. 78.1”, rev / mile = 834 <staggered - rear only>
245/45-16 -- dia. 24.6", width 8.9" / tread width 7.9", rev / mile = 845 <staggered - rear only, not a lot of tires available in this size>


16" Wheels
Alpina
(Front) 16" diameter / 7" width / et 11
Tire Size - 205 / 55 - 16
(Rear) 16" diameter / 8" width / et 24
Tire Size - 225 / 50 - 16

(Open Lug)

(Closed Lug)

BBS RS
3 piece wheels
(Front - RS 005) 16" diameter / 7" width / et 11
Tire Size - 205 / 55 - 16
(Rear - RS 006) 16" diameter / 8" width / et 24
Tire Size - 225 / 50 - 16

BBS Mahle
16" diameter / 7" width / et 11
<< Note - longer studs or longer lugs are required on e9 coupes due to thicker mounting surfaces of the BBS Mahle wheels >>
ARP 100-7715 - can be purchased from SummitRacing.com

H & B
(Front) 16" diameter / 7" width / et 11
Tire Size - 205 / 55 - 16
(Rear) 16" diameter / 8" width / et 24
Tire Size - 225 / 50 - 16

Coupeking Alpina
(Front) 16" diameter / 7" width / et 11
Tire Size - 205 / 55 - 16
(Rear) 16" diameter / 8" width / et 24
Tire Size - 225 / 50 - 16

Weds Bavaria
2 piece wheels
(Front) 16" diameter / 7" width / et 11
Tire Size - 205 / 55 - 16
(Rear) 16" diameter / 8" width / et 24
Tire Size - 225 / 50 - 16

BMW - Style 5
e28 M5
16" diameter / 7.5" width / et20

e39 5 series (may require hub-centric rings)
(front) 16" diameter / 7" width / et20 (may require 5mm to 8 mm spacers)

e38 7 series (may require hub-centric rings)
(rear) 16" diameter / 8" width / et23

BMW - Style 29
e34 + e39 5 series (may require hub-centric rings and 5mm to 8mm spacers)
16" diameter / 7" width / et 20

BMW - Style 32
16" diameter / 7" width / et20

BMW - Style 42
e34 / e39 5 series (may require hub-centric rings and 5mm to 8mm spacers)
16" diameter / 7" width / et20

BMW - Style 82 (36116751762)
e39 - 5 series (may require hub-centric rings and 5mm to 8mm spacers)
16" diameter / 7" width / et 20

BBS - RX
various sizes + widths

 

[rsporsche]

17" Wheels
<< NOTE - Refer to the FAQ Speedo section for information on what alternate tire sizes might do to how your speedo reads / depending on your tranny / diff gear - https://e9coupe.com/forum/threads/speedometer-and-differential-ratios.35162/ >>

<< NOTE - Care must be exercised when installing wider wheels + tires to prevent rubbing or catching the fender lip. It is widely recommended that fender lips be rolled AND negative camber plates installed >>


Tire Size Chart
<< Note - tire diameter / revolutions per mile vary between manufacturers >>

205/50-17 -- dia. 25.1", width 8.5" / tread width 6.8", rev / mile = 828
215/45-17 -- dia. 24.6", width 8.5" / tread width 7.3", rev / mile = 844
225/45-17 -- dia. 25", width 8.9" / tread width 7.6", rev / mile = 831 <staggered - rear only>
235/45-17 -- dia. 25.3", width 9.3" / tread width 8.0, rev / mile = 821 <staggered - rear only>
245/40-17 -– dia. 24.7”, width 9.8" / tread width 8.6", rev / mile = 841 <VERIFY width available, staggered - rear only>

BBS - RS
(3 piece wheels - may require spacers - the face sizes can vary, some use larger faces with single step lips, others use faces from 16" wheels with double stepped lips)

See BBS RS model information below in separate post
<< custom widths / offset are possible >>

16" face with double step lip

<< 17" with single step lip from Ehrlich Wheel Works >>

BMW - Style 5
e39 5 series (2 piece - will require hub-centric rings)
BBS RC090 - 17" diameter / 8" width / et20 (may require 5mm to 8mm spacers)
BBS RC091 - 17" diameter / 9" width / et26 (optional staggered rears)

<< this wheel has a custom RS cap - from Ehrlich Wheel Works>>

this coupe is running 8" fronts with 225/45-17's and 9" rears w/ 245/40-17's. no spacers but all fenders are rolled.

BMW - Style 42
e39 5 series (2 piece - will require hub-centric rings)
BBS RS740 - 17" diameter / 8" width / et20 (may require 5mm to 8mm spacers)

View attachment 100116

BMW - Style 32
e39 5 series (will require hub-centric rings and spacers)
17" diameter / 8" width / et20

 

[rsporsche]

had a few moments on my hands and had collected images over the years ... so i just put them all in a place where we can all find them. i really like this FAQ section that our forum leaders put together so its easier to find some of these often searched for threads. thanks @Markos and @HB Chris


BBS RS Models (BMW - 5 x 120)
Some of these models are not very common and could be very difficult to find - the 005 / 006 are the most common for the e9

RS 147 - 15" diameter / 10.5" width / et -47 / 5.5" lip / 4.5" barrel / CB 72.5 (BMW M1)
RS 148 - 15" diameter / 13" width / et -72 / 7.5" lip / 5.5" barrel / CB 72.5 (BMW M1 / M635csi)
RS 149 - 15" diameter / 10.5" width / et -22 / 4.5" lip / 5.5" barrel / CB 72.5 (BMW M635csi)
RS 153 - 15" diameter / 9.5" width / et -15 / 3.5" lip / 5.5" barrel / CB 72.5 (BMW 635csi)
RS 154 - 15" diameter / 11" width / et -72 / 6.5" lip / 4" barrel / CB 72.5 (BMW 635csi)

RS 005 - 16" diameter / 7" width / et 11 / 1.5" lip / 5" barrel / CB 72.5
RS 006 - 16" diameter / 8" width / et 24 / 1.5" lip / 6" barrel / CB 72.5
RS 021 - 16" diameter / 8" width / et 11 / 2" lip / 5.5" barrel / CB 72.5
RS 022 - 16" diameter / 9" width / et 24 / 2" lip / 6.5" barrel / CB 72.5
RS 061 - 16" diameter / 8" width / et 20 / 1.5" lip / 6" barrel / CB 72.5
RS 066 - 16" diameter / 10" width / et 20 / 2.5" lip / 7" barrel / CB 72.5
RS 075 - 16" diameter / 9" width / et 8 / 2.5" lip / 6" barrel / CB 72.5
RS 076 - 16" diameter / 10" width / et 11 / 3" lip / 6.5" barrel / CB 72.5
RS 141 - 16" diameter / 9" width / et 36 / 1.5" lip / 7" barrel / CB 69.6 (Opel Monza)
RS 211 - 16" diameter / 8" width / et 11 / 2" lip / 5.5" barrel / CB 72.5 (BMW 5 + 7 series)

RS 007 - 16.3" (415mm) diameter / 8.26" (210 mm) width / et 15 / 50 mm lip / 150 mm barrel / CB 72.5 (16" face - M635csi)
RS 107 - 16.3" (415mm) diameter / 8.26" (210 mm) width / et 15 / 50 mm lip / 150 mm barrel / CB 72.5 (16" face - M635csi)

RS 197 - 17" diameter / 9.5" width / et 13 / 2.5" lip / 6.5" barrel / CB 72.5
RS 198 - 17" diameter / 8.5" width / et 13 / 2" lip / 6" barrel / CB 72.5 (BMW 7 series - 16" center w/ doublestep)
RS 212 - 17" diameter / 8.5" width / et 13 / 2" lip / 6" barrel / CB 72.5 (BMW 5 + 7 series)
RS 302 - 17" diameter / 8" width / et 40 / 1" lip / 6.5" barrel / CB 72.5 (BMW 3 series)

RS 285 - 18" diameter / 8.5" width / et 13 / 2" lip / 6" barrel / CB 72.5 (BMW 5 + 7 series - 17" center w/ doublestep)
RS 286 - 18" diameter / 9.5" width / et 13 / 2.5" lip / 6.5" barrel / CB 72.5 (BMW 5 + 7 series - 17" center w/ doublestep)

 

[rsporsche]

BBS RS 001's are a 4 x 100 wheel and are 15" diameter. these are wheels for 2002 or e21 / e30. they have 30 bolts. the 005 / 006 have 34 bolts. now it it possible to fill the holes and drill new holes .. this is done all the time by Ehrlich to create wheels for e30's / e21 + 2002.

 

[rsporsche]

Many thanks to @adawil2002 for the suggestion to add tire size information. also added vintage tire models / sources

 

[rsporsche]

Vince has 225/45 on the front and 245/40 on the rear. i verified with Vince + is posted above his coupe picture

 

[Markos]

@rsporsche ,

Posts are split. Please bear with me while I update the attachments. When you clone posts, it doesn't clone the attachments. Rather, it shares the same attachment. I'll need to re-add the images, and may need your help. PM later today. This should be all fixed up by this evening. Now we have room to add significantly more content to each size wheel. I didn't add an 18" section.

 

[Drew Gregg]

Here are the pics I sent to Victor of the BBS Mahle wheels 16X7" ET11 on the original lug studs. Thought you could use them with this wheel FAQ.

 

[Markos]

@rsporsche,

Clearing up any ideas about running 8x16 ET23. As video highlights, you still get rubbing with a 3MM spacer. This also means that an 8x16 ET20 with no spacer would also be an issue.

 

[rsporsche]

@Markos ... in 16" wheels, i an a proponent of 7" front wheels / 8" rear wheels. only in 17" wheels can an 8" work up front ... based on @vince experience. i have gone back and added a note to the one 16 x 8 et 23 wheel (style 5 - one piece) that it is rear only, and labled the 16 x 7 as front

 

[Markos]

Totally agree. You see these wheels on e9’s quite a bit. I’ll be buying some 6mm spacers. These are rollers and I can’t have them rubbing. The 225 tire also rubs the exhaust out back.

@Markos ... in 16" wheels, i an a proponent of 7" front wheels / 8" rear wheels. only in 17" wheels can an 8" work up front ... based on @vince experience. i have gone back and added a note to the one 16 x 8 et 23 wheel (style 5 - one piece) that it is rear only, and labled the 16 x 7 as front

 

[teahead]

Good website for those wanting BBS RS wheels:

BBS RS list

 

[alprada70]

excellent information, very detailed !!!

 

[Ohmess]

Markos - the Weds Bavarias were also available in 15":

 

[Markos]

Markos - the Weds Bavarias were also available in 15":

Ahh yes indeed! I’ll see if @rsporsche wants to update. If not I certainly can.

 

[tferrer]

New 205 tires are too small for the car and the wheels are all wrong for an "L" but they don't look half bad. These are 15X7 ATS , not sure what the offset is. Tires were 225/50 15s all the way around with camber plates maxed out and cut springs. It's low....

 

[rsporsche]

@tferrer - 225/50-15" tires are almost 1" in diameter too small - only 23.9" diameter. here are the recommended sizes in 15" which more closely correlate to the 24.7" diameter of the 195/70-14" original tire

205/60-15 -– dia. 24.7”, width 8.2" / tread width 6.8", circ. 77.6”, rev / mile = 842
215/60-15 -- dia. 25.1", width 8.7" / tread width 7.3", rev / mile = 827
225/55-15 – dia. 24.7”, 77.7” circ, rev / mile = 842 <caution - tire is 9" wide - not many tires available in this size>

 

[tferrer]

There's no performance tires and more importantly, there's no wheel well space for that diameter. The springs were cut. Like I said, it's low. It'll go back to a more normal height in a bit...

@tferrer - 225/50-15" tires are almost 1" in diameter too small - only 23.9" diameter. here are the recommended sizes in 15" which more closely correlate to the 24.7" diameter of the 195/70-14" original tire

205/60-15 -– dia. 24.7”, width 8.2" / tread width 6.8", circ. 77.6”, rev / mile = 842
215/60-15 -- dia. 25.1", width 8.7" / tread width 7.3", rev / mile = 827
225/55-15 – dia. 24.7”, 77.7” circ, rev / mile = 842 <caution - tire is 9" wide - not many tires available in this size>