[BayDriverSF]

If I want to stick to the stock 20" wheel size, are there any good looking 20" BBS wheels for the F90? If you have them, please post a pic. All I see is 21" out there.

[TAHB]

I’m looking for the exactly the same wheels. BBS does have them, but they are a custom order. The model name is RI-D. Crazy light too.

20x9.5+23 = 18.9 lb
20x9.5+15 = 18.9
20x10.5+23 = 19.8
20x10.5+15 = 20.2

Over 10k for the set though. So not sure if going to pull the trigger.

[BayDriverSF]

Originally Posted by TAHB

I’m looking for the exactly the same wheels. BBS does have them, but they are a custom order. The model name is RI-D. Crazy light too.

20x9.5+23 = 18.9 lb
20x9.5+15 = 18.9
20x10.5+23 = 19.8
20x10.5+15 = 20.2

Over 10k for the set though. So not sure if going to pull the trigger.

Excuse my ignorance, but what do those numbers mean? I realize I'm looking for 20" wheels, but what are the 9.5, 10.5, 23, 15 numbers referring to?

[boost3dx]

Originally Posted by BayDriverSF

Excuse my ignorance, but what do those numbers mean? I realize I'm looking for 20" wheels, but what are the 9.5, 10.5, 23, 15 numbers referring to?

Wheel width.

The + numbers are the offset.

[BayDriverSF]

This is what they look like apparently

[ResIpsaLoquitur]

Originally Posted by BayDriverSF

This is what they look like apparently

It seems there's a reason people go with 21" vs. 20" — BBSs look way too small to my eye in 20s, especially in the darker example you've posted. It exaggerates the tire's sidewall.

[Rafichicago]

Love the look. Just right 👍

[BayDriverSF]

Originally Posted by ResIpsaLoquitur

It seems there's a reason people go with 21" vs. 20" — BBSs look way to small to my eye in 20s, especially in the darker example you've posted. It exaggerates the tire's sidewall.

Agreed, sidewall looks too thick with 20". Unfortunately 21" has too many downsides (rims susceptible to pot hole damage), less cushioning, more weight, making a 21" upgrade questionable.

[ResIpsaLoquitur]

Originally Posted by BayDriverSF

Agreed, sidewall looks too thick with 20". Unfortunately 21" has too many downsides (rims susceptible to pot hole damage), less cushioning, more weight, making a 21" upgrade questionable.

Agreed and all valid points! But how they look compared to the 21s, it's like a totally different wheel.

[TAHB]

Originally Posted by BayDriverSF

Excuse my ignorance, but what do those numbers mean? I realize I'm looking for 20" wheels, but what are the 9.5, 10.5, 23, 15 numbers referring to?

Stock is 20 x 9.5 ET 28 (Front), 20 x 10.5 ET 28 (Rear)

So if you want close to OEM look you would pick the
20 x 9.5 ET 23 / 20 x 10.5 ET 23 option. Pick the ET 15 options if you want the wheels pushed out a little bit for a more aggressive stance.

Since these would be the wheels I take on track, I agree with your thoughts on 20 vs 21 for the weight savings and the protection from hitting the rumble strips at speed.

[bimmerbeast9]

you have lost yalls minds. 21" bbs fi-r weighs 20lbs. oem wheels are 34lbs. lol

21s are whats up

[Aronis]

Love those rims....very nice.

Wanted to put them on my prior M3, but did not have the $6000 to spend on such. LOL.

When I bought it, I was very happy to see that my GTS had very similar wheels in black.

Mike

[F90mfunf]

I have Custom 3 piece BBS LM
Brushed Dark tint with high polished lips
20 x 10 with 2.5 inch lip front
20 x 11 with 3.5 inch lip rear

[Rafichicago]

Those look fantastic well done 👍

[dcohen13]

Originally Posted by TAHB

I’m looking for the exactly the same wheels. BBS does have them, but they are a custom order. The model name is RI-D. Crazy light too.

20x9.5+23 = 18.9 lb
20x9.5+15 = 18.9
20x10.5+23 = 19.8
20x10.5+15 = 20.2

Over 10k for the set though. So not sure if going to pull the trigger.

I got a custom set from Rex Racing Wheels. Pretty much identical BBS styles. Similar to the ones posted above and the FI-R. My 20x10" came in at 10.9 KG or 24 pounds. Not bad for a set that is roughly $3300

www.rexracingwheels.com

[BayDriverSF]

Originally Posted by F90mfunf

I have Custom 3 piece BBS LM
Brushed Dark tint with high polished lips
20 x 10 with 2.5 inch lip front
20 x 11 with 3.5 inch lip rear

Wow!