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      04-05-2016, 05:00 PM   #1
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Stoptech 2-piece Aero Rotors for your F3x 335i 435i

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StopTech AeroRotors and AeroRotor Kits

StopTech® AeroRotor® Replacement Kits (ARK) are designed to replace your vehicle's original factory rotors, while retaining the factory brake calipers. Although the ARK is the same diameter and thickness as the factory rotors, it offers improved cooling, braking, and handling.

The directional, floating AeroRotors allow independent expansion of the rotor and hat without "coning," thanks to elongated drive pin holes. ARK components include AeroRotor friction rings with patented internal vane design, pre-assembled to billet aluminium AeroHats with directional stand-offs that optimize cooling airflow.

The patented AeroRotor vane design pushes up to 80% more air than factory rotors for better cooling and reduced fade on the track.



The aircraft-grade aluminum hats and 2-piece AeroRotors are up to 8 pounds lighter than stock rotors, allowing faster acceleration and deceleration, and improved handling.

StopTech AeroRotors are available slotted or cross-drilled. These slots or holes allow better dissipation of heat, friction material and debris, assuring that fresh pad material is in contact with the rotor every time the brakes are applied. An optional anti-corrosion, zinc finish is available for customers in cold climates, where salt and chemicals are used to melt snow and ice. The zinc coating also benefits customers who prefer no visible surface rust on the vanes and outer circumference of the rotors.

StopTech AeroRotors are 100% made in the USA.





StopTech AeroRotor Rings


The patented 2-piece AeroRotor assembly uses uniquely designed and patented AeroVanes® inside the disc to optimize airflow through the rotor. This improved directional design minimizes turbulence and flows up to 61 percent more air than any other rotor tested. The result is up to 80 percent better airflow over original equipment rotors and 10-30 percent better airflow than other directional vane racing rotors currently available. Better airflow equals better cooling, and better cooling means less fade and better overall brake system performance.

StopTech AeroRotors also feature a proprietary alloy chemistry. By adding molybdenum to the gray iron, carefully targeting a narrow range of hardness and tensile strength values, and controlling the cooling rate of the rotor after casting, StopTech produces a friction ring with added crack resistance as well as improved functionality.





Super strong Inconel® drive pin washers - as used in aircraft engines and other racing applications - are practically impervious to oxidation or corrosion even at extreme temperatures.

Street rotors use a curved drive pin washer to add tension to the hat assembly, reducing rattle. Race applications use a flat washer that allows full freedom of movement between hat and friction ring.



StopTech AeroHats feature directional stand offs to further improve airflow and cool the rotor.





Elongated drive pin slots allow separate expansion of rotor and hat to resist coning.

Tapered slots allow evacuation of debris that might otherwise accumulate with straight-cut slots.



Drive pins used to affix the hat to the rotor have a slightly out-of-round hole and are self-locking. They withstand high temperatures much better than typical lock washers and allow drive pins to move freely, yet securely, as hat and rotor expand at different rates.


Drive Pins


In certain applications where packaging is an issue - such as on the Chevrolet Corvette - StopTech uses slant-head drive pins to provide improved clearance as pads wear.




Zinc Plating


Zinc Plating, available on StopTech AeroRotors, prevents corrosion. This is particularly useful in winter climates where road salt and other environmental factors may increase the likelihood of oxidation.

335i and 435i, including xi, with M Sport Brakes only

370 x 30 mm rotors

24.12 lb. each


For more information and pricing please visit:

http://www.hpashop.com/Stoptech-Aero...h-Aero-F3x.htm
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Last edited by HP Autosport; 04-08-2016 at 01:51 AM.
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      04-05-2016, 05:55 PM   #2
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so these are only for front. when are the rears coming ?

will probably try these next summer!
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      04-05-2016, 06:51 PM   #3
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Subd for intro of this on the 328i and xi cars. They look great by the way!
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      04-05-2016, 07:24 PM   #4
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Wow these are very cool!!
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      04-05-2016, 08:11 PM   #5
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Quote:
Originally Posted by M-terkait View Post
so these are only for front. when are the rears coming ?

will probably try these next summer!
Just the fronts as it's meant for performance applications. It may be like PFC DD rotors, no rears are available.
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      04-05-2016, 08:13 PM   #6
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Quote:
Originally Posted by cncmastr View Post
Subd for intro of this on the 328i and xi cars. They look great by the way!
328i as long as you have the 370 mm M sport brakes and same goes with xi.
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      04-08-2016, 01:58 AM   #7
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Saves up to 8lbs, anyone know how much the stock 370mm Msport rotors weigh?
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      04-08-2016, 10:54 AM   #8
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HP Autosport, can you provide a picture of the "actual" rotors?
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      04-08-2016, 12:12 PM   #9
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I'm in if these guys don't make any noise as my M Performance rotors.
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      04-08-2016, 01:18 PM   #10
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Quote:
Originally Posted by zxtman View Post
HP Autosport, can you provide a picture of the "actual" rotors?
It's the first photo in post 1.
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      04-08-2016, 01:52 PM   #11
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Quote:
Originally Posted by yoandry View Post
I'm in if these guys don't make any noise as my M Performance rotors.

I installed the ST-60 kit on my 335i. The rotors are also "aero" -- absolutely no noise. My previous was M-Sport; ugly looking, soft, and squeals like a freight train.
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      04-08-2016, 02:08 PM   #12
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Quote:
Originally Posted by _bdiddyb_ View Post
I installed the ST-60 kit on my 335i. The rotors are also "aero" -- absolutely no noise. My previous was M-Sport; ugly looking, soft, and squeals like a freight train.
These Aero Rotors are the same exact rotors on Stoptech's BBKs.
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      04-08-2016, 02:15 PM   #13
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Quote:
Originally Posted by dotjonnL View Post
Saves up to 8lbs, anyone know how much the stock 370mm Msport rotors weigh?
According to ETK:

34106797603
Brake rotor, ventilated, front
370X30

From:02/01/2012To:-Weight:11.880 kg

You will save about 2 lbs per rotor.

I see weight savings as a nice bonus on top of other benefits you are getting from this rotor.

Remember these rotors are probably heavier to begin with the advanced vane design for much improved airflow and better alloy chemistry to resist wear, cracking and dissipate heat more efficiently.
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      04-08-2016, 03:22 PM   #14
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How about a group buy with a decent discount for forum members?
...I might bite
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      04-08-2016, 04:57 PM   #15
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Quote:
Originally Posted by HP Autosport View Post
According to ETK:

34106797603
Brake rotor, ventilated, front
370X30

From:02/01/2012To:-Weight:11.880 kg

You will save about 2 lbs per rotor.

I see weight savings as a nice bonus on top of other benefits you are getting from this rotor.

Remember these rotors are probably heavier to begin with the advanced vane design for much improved airflow and better alloy chemistry to resist wear, cracking and dissipate heat more efficiently.
Is that the dimpled and slotted M Performance rotors?

I have the non-M Perf rotors

I think its Part number: 34106797606
Description:Brake disc, lightweight, ventilated
From:25.06.2012 productionTo:
Weight:16.500 kg.
Brand:BMW
Note:min.th. = 28,4 mm
Information:370X30

If so, wow that's huge weight savings
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      04-08-2016, 06:31 PM   #16
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Quote:
Originally Posted by dotjonnL View Post
Is that the dimpled and slotted M Performance rotors?

I have the non-M Perf rotors

I think its Part number: 34106797606
Description:Brake disc, lightweight, ventilated
From:25.06.2012 productionTo:
Weight:16.500 kg.
Brand:BMW
Note:min.th. = 28,4 mm
Information:370X30

If so, wow that's huge weight savings
My bad...I could have looked up the incorrect OEM rotor.

Yes, that is a huge weight savings!
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      04-11-2016, 12:29 PM   #17
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Quote:
Originally Posted by HP Autosport View Post
It's the first photo in post 1.
I apologize for being so picky, but I don't think that's an actual photo: if you compare the oem 370mm rotor vs. the photo you refer to, the width of the oem rotor's friction surface is much wider.
Attached Images
File Type: pdf 370mm Rotor.pdf (160.0 KB, 27 views)
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      04-11-2016, 07:07 PM   #18
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Most of the front two-piece rotors will look like what is pictured.
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      04-12-2016, 09:17 PM   #19
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Quote:
Originally Posted by yoandry View Post
I'm in if these guys don't make any noise as my M Performance rotors.
2nd.
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      04-12-2016, 10:17 PM   #20
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Quote:
Originally Posted by yoandry View Post
I'm in if these guys don't make any noise as my M Performance rotors.
Noise is mostly a result of ambient temps, brake pads, and whether the right type and way brake lubricant/anti-squeal is applied.

Not sure how spending this much money for the purpose of ending brake squeal is cost effective at all.

In addition, I have zero brake squeal outside of really cold mornings in the winter and I have the M Sport brake pads which are "hotter" than the brake pads that come with the M Performance Brake Kit.
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      04-13-2016, 02:45 PM   #21
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Quote:
Originally Posted by Polo08816 View Post
Noise is mostly a result of ambient temps, brake pads, and whether the right type and way brake lubricant/anti-squeal is applied.

Not sure how spending this much money for the purpose of ending brake squeal is cost effective at all.

In addition, I have zero brake squeal outside of really cold mornings in the winter and I have the M Sport brake pads which are "hotter" than the brake pads that come with the M Performance Brake Kit.
We aren't referring to any squeal from the M performance brakes.
We are referring to the noise that the slotted/drilled rotors make because of air passing through the holes etc... Common noise in all off them specific in the m performance one. So, I'm dealing with it till replacement is need it. Who knows, is kind off annoying with the windows down passing close to the median or walls.
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      04-13-2016, 02:53 PM   #22
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Quote:
Originally Posted by yoandry View Post
We aren't referring to any squeal from the M performance brakes.
We are referring to the noise that the slotted/drilled rotors make because of air passing through the holes etc... Common noise in all off them specific in the m performance one. So, I'm dealing with it till replacement is need it. Who knows, is kind off annoying with the windows down passing close to the median or walls.
It is true some slotted or drilled rotors will make an awful almost howling sound under medium to hard braking. Some are much louder than other. These Aero Rotors are the same ones in the Stoptech Big Brake Kits so there shouldn't be any noise issues.
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