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      03-01-2018, 05:13 PM   #1
Demon Barber
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Feelings on carbon ceramic brakes on the F90?

Would like to get a discussion going regarding the optional carbon ceramic brakes versus the steel brakes. Besides initial cost and eventual replacement cost, are there any other down sides?

What is everyone going with? Anyone experienced them on the F10 and have a strong opinion to share, positive or negative?
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      03-01-2018, 05:42 PM   #2
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I have them on my M4, my buddy has them on his M6 gran coupe. We absolutely love them and will be getting them on our new m5s
I track my car couple times a year. And he's a very aggressive driver.
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      03-01-2018, 06:22 PM   #3
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Can you comment on the amount of dust, cold stopping power/pedal feel, and noise? How about longevity? I appreciate your input.
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      03-01-2018, 06:52 PM   #4
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Steel here. Absolutely no need for CCBs (for me).
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      03-01-2018, 09:03 PM   #5
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Have they done anything to curb the squeal that was present on the F10? My steels had terrible squeal and from what I've heard, the CCB were as bad if not worse.
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      03-02-2018, 12:36 AM   #6
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Had ccb on my f10 m5 and have steel on my f13 m6. The ccb had no brake dust but much more squeal compared to the steel m6. In fact, the ccb would sometimes squeal even without the brake engaged. The ccb did take longer to warm up, but once warmed, the bite and stopping power felt way better compared to the steel. I drive aggressively and would definitely brake later in the m5 vs the m6.

I miss those brakes, especially now as my dd is a f86 with no ccb option as it exhibits the worst brake dust I've seen.

Seriously considering getting ccb on my f90 once the f13 comes off lease.
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      03-02-2018, 04:59 AM   #7
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I have them on the F10. No more squeal than steel rotors, stop on a dime, look amazing and produce no brake dust. By the time you need to replace them you probably won’t even own the car. I’d do it again.
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      03-02-2018, 05:37 AM   #8
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Quote:
Originally Posted by SFT33 View Post
I have them on the F10. No more squeal than steel rotors, stop on a dime, look amazing and produce no brake dust. By the time you need to replace them you probably won’t even own the car. I’d do it again.
I won't buy a car without ccbs
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      03-02-2018, 04:42 PM   #9
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I haven't had ccb yet on any vehicles, but will have on my build. Here is my research:
-supposedly the brake dust is finer and less magnetic, so it will stick less to a wheel than steel.
-I have heard they will actually squeal less. However, it depends on what you have already. My 2015 X5M squeals every time I slow down.
-Out of a car wash in the winter, or when cold, your first slow down on CCB may surprise you by how much you have to press the peddle down.
-Once at running temperature, the CCB is a great brake without braking being two aggressive in stop and go traffic
-They reduce unsprung weight which does help your acceleration or quartermile time.
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      03-03-2018, 07:03 AM   #10
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Useless....Unless you're solely getting them to avoid brake dust
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      03-03-2018, 08:34 AM   #11
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I had the F10 M5 with steels and a few time on the highway trying to slow down was very close call from high high speeds of you know what I am talking about. After 60K they started to make noise, took it in and they exchanged them for new pads with weights and the noise was gone.
Now I have the F12 M6 GC that came with ceramics. The stopping power is amazing but yes it makes noise. The only solution to that is washing them with wheel cleaner and that quiets the noise only for a week if you are lucky.
Now I am waiting for my F90 M5 and it only came with ceramics. I am hoping the noise will be less 🙏🏻
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      03-03-2018, 02:50 PM   #12
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Quote:
Originally Posted by shahin View Post
I had the F10 M5 with steels and a few time on the highway trying to slow down was very close call from high high speeds of you know what I am talking about. After 60K they started to make noise, took it in and they exchanged them for new pads with weights and the noise was gone.
Now I have the F12 M6 GC that came with ceramics. The stopping power is amazing but yes it makes noise. The only solution to that is washing them with wheel cleaner and that quiets the noise only for a week if you are lucky.
Now I am waiting for my F90 M5 and it only came with ceramics. I am hoping the noise will be less 🙏🏻

I don't understand all this talk about CCBs stopping harder than steel. From what I understand, the benefits are less fade and weight.

Am I missing something here? Are the CCBs on BMWs larger or something..that allows them to brake harder than steel brakes?
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      03-03-2018, 03:02 PM   #13
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I have been wondering the same thing. Has there ever been an instrumented test done comparing steel vs CCB on the F10 in terms of cold stopping distance? I too always thought CCB only offered fade resistance and decreased unsprung weight, lower dust, and increased longevity. I have heard rumors that CCB can be suboptimal when cold, and wanted insight into users' personal experience with this. People also have complained about excess noise, and some don't, so I don't know what to believe.
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      03-03-2018, 03:24 PM   #14
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Quote:
Originally Posted by Hill Country F90 View Post
I don't understand all this talk about CCBs stopping harder than steel. From what I understand, the benefits are less fade and weight.

Am I missing something here? Are the CCBs on BMWs larger or something..that allows them to brake harder than steel brakes?
Yes they are almost 19" in diameter
They are bigger and stop better
That's from my personal experience
I had steels on M5 and CCB on M6
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      03-03-2018, 03:27 PM   #15
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Quote:
Originally Posted by Demon Barber View Post
I have been wondering the same thing. Has there ever been an instrumented test done comparing steel vs CCB on the F10 in terms of cold stopping distance? I too always thought CCB only offered fade resistance and decreased unsprung weight, lower dust, and increased longevity. I have heard rumors that CCB can be suboptimal when cold, and wanted insight into users' personal experience with this. People also have complained about excess noise, and some don't, so I don't know what to believe.
I live in Canada, sometimes and it gets up to -40 Celsius and I had no problems with breaks. Noise from ceramic breaks is normal unfortunately.
Ferrari, Lamborghini, Porsche the all complaining as well about noise on their CCB.
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      03-03-2018, 03:27 PM   #16
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Quote:
Originally Posted by Hill Country F90 View Post
I don't understand all this talk about CCBs stopping harder than steel. From what I understand, the benefits are less fade and weight.

Am I missing something here? Are the CCBs on BMWs larger or something..that allows them to brake harder than steel brakes?
You're not missing anything...The difference is marginal. I don't see any average driver noticing the difference on this particular car. First off, they shine when heated. Yes, there is less rotational mass and unsprung weight, but again on a 4300 pound car I can't see it being so noticeable. So in summary, if you don't want brake dust, drop $9000 on them

If we were talking a GT3, it would be a more fruitful discussion. I personally do not understand why these brakes are even offered on this car.
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      03-03-2018, 05:18 PM   #17
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What would be the disadvantage of buying steels from factory and then install brembos BBK...
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      03-03-2018, 11:47 PM   #18
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I had 2 M5 F10's, one with steel and one with ccb's. I'd go with steel from now on. Not much difference in brake feel. The ccb's will have less fade if you decide to track and have zero brake dust. Other than that it squealed a lot more than steel.
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      03-04-2018, 06:25 AM   #19
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Quote:
Originally Posted by shahin View Post
Yes they are almost 19" in diameter
The CCB fronts are 16" in diameter. The steels are 15.5".

The limiting factor for stopping distance on all modern cars is the tire. The CCBs cannot stop shorter under normal circumstances, but they do have better fade resistance when tracking. Removing about 50lbs of rotational mass (combined) has more benefit in acceleration and the suspension's ability to control wheel motion than say taking 50lbs off the body panels, but in everyday driving it's hardly significant.

Without doubt CCBs last longer and produce less dust. As far as value, that's a personal judgement call. I'm sticking with the steels.
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      03-04-2018, 08:03 AM   #20
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Quote:
Originally Posted by Bönz View Post
The CCB fronts are 16" in diameter. The steels are 15.5".

The limiting factor for stopping distance on all modern cars is the tire. The CCBs cannot stop shorter under normal circumstances, but they do have better fade resistance when tracking. Removing about 50lbs of rotational mass (combined) has more benefit in acceleration and the suspension's ability to control wheel motion than say taking 50lbs off the body panels, but in everyday driving it's hardly significant.

Without doubt CCBs last longer and produce less dust. As far as value, that's a personal judgement call. I'm sticking with the steels.
100% spot on
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      03-04-2018, 08:10 AM   #21
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Ordered mine with steels. Not sure if it is true, but read an article that claimed ccb’s are not as effective when wet.
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      03-04-2018, 03:33 PM   #22
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Had an F10 without them and then and F10 with CCB. Had CCB on 911 Turbo S as well. I love them. Ordered F90 with CCB.
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