Slotted Rotors for 370/345 Brakes

r1concepts · 01-04-2019, 06:27 PM

Quote:

Originally Posted by Vulpe

Their post in the vendor section does have this part in it, unless they came up with something recently.

Looks like we do have the aluminum hat rotors available now! Going to take picture to show you how they look like and I'll update the thread with prices next week.

Vulpe · 01-04-2019, 06:38 PM

I think we need to start being specific as to what 2 piece we are talking about. I'm not sure if I'm completely correct on this so correct me if I'm wrong.

The OEM rotors are 2-piece but the rotors are riveted to the aluminum hat. Then there are the semi/floating rotors that are bolted to the hat like what ECS offers.

I got a set of Brembo 2-piece dimpled and slotted (09.C394.13, 09.C395.13)that replaces the OEM M Performance Brake rotors (34106797603, 34206797600)

Quote:

Originally Posted by r1concepts

Looks like we do have the aluminum hat rotors available now! Going to take picture to show you how they look like and I'll update the thread with prices next week.

Great! It was difficult (for me at least) to find a set of 2-piece all around for the 370/345 rotors. Hopefully people will take advantage of it.

kern417 · 01-06-2019, 02:31 PM

Yeah I don't mind if they re riveted or not honestly. Just the weight savings of not having a full cast rotor. If they are that cost-prohibitive, I'll just get OEM riveted blanks.

Logicoeur · 01-07-2019, 07:45 AM

What's your aversion to having dimples on the rotors?

r1concepts · 01-08-2019, 12:52 PM

Below are pictures of our aluminum riveted hat rotors (370mm) that are now available. Pricing will be updated in our thread by the end of the week.

kern417 · 01-09-2019, 05:19 AM

Quote:

Originally Posted by Logicoeur

What's your aversion to having dimples on the rotors?

looks and performance

Nugget · 01-09-2019, 09:42 PM

Quote:

Originally Posted by Logicoeur

There was a thread I found several weeks ago in my search for the same (going to go BBK). Someone tried to have real 2piece floating rotors manufactured for our cars and it would be too expensive to make a true floating 2 piece rotor.

I got a quote from Brypar to make a full floating motorsport assembly 2 piece discs.
Was around AUD$2k for the front pair.

cfm56d7b · 01-10-2019, 09:31 AM

Nice thread. Subscribed. My rotors are coming up for replacement.

thug108 · 01-15-2019, 08:56 PM

Quote:

Originally Posted by FaRKle!

My StopTech ARKs (slotted version) were a hair over $700 shipped from TH Motorsports. They send out coupons regularly if you leave things in your cart and don't check out.

do you have a link to a price? ive looked on the website and cant find that price unless yours were purchased more than a year ago

FaRKle! · 01-15-2019, 10:58 PM

Quote:

Originally Posted by thug108

do you have a link to a price? ive looked on the website and cant find that price unless yours were purchased more than a year ago

I ordered mine 3/18. TH has probably changed their pricing since then. Still I'd monitor it if I were you and wait for a good price.

thug108 · 01-16-2019, 04:36 PM

Quote:

Originally Posted by FaRKle!

I ordered mine 3/18. TH has probably changed their pricing since then. Still I'd monitor it if I were you and wait for a good price.

thanks will do. best price ive currently found for the zinc coated is at https://www.ajusa.com/ TH comes in second if anyone else is looking to purchase

alexng72 · 01-18-2019, 12:01 PM

Updated***
I swapped out my R1 concept rotorsand pads for both front and rear with stoptech because of the squeaking noise in the cold. I noticed that the rotors were a bit rusty where the dimples were too.
Very pleased with Stoptech so far.

kern417 · 01-18-2019, 12:54 PM

Dang. And this is your first winter with them, right? Sure it wasn't the pads? I'd probably run some hawk ceramics with the r1 slotted rotors when it comes down to it. I know high performance pads squeal some but for a daily driver i'd be more concerned with reducing dust.

alexng72 · 01-18-2019, 01:42 PM

Quote:

Originally Posted by kern417

Dang. And this is your first winter with them, right? Sure it wasn't the pads? I'd probably run some hawk ceramics with the r1 slotted rotors when it comes down to it. I know high performance pads squeal some but for a daily driver i'd be more concerned with reducing dust.

It's actually my second winter here. I didn't have rusty issue last winter but it turned out pretty bad this season. You might wanna check out EBC red stuff for low dust pads. I heard some good reviews about them from ppl with other cars too not only with BMWs

kern417 · 01-19-2019, 02:24 PM

Quote:

Originally Posted by alexng72

It's actually my second winter here. I didn't have rusty issue last winter but it turned out pretty bad this season. You might wanna check out EBC red stuff for low dust pads. I heard some good reviews about them from ppl with other cars too not only with BMWs

Ah gotcha. I may still give em a shot considering i don't drive much in winter. I've had EBCs in the past but I got hooked on hawks after trying them, and their easier to find/cheaper in my experience.

alexng72 · 01-19-2019, 03:50 PM

Quote:

Originally Posted by kern417

Quote:

Originally Posted by alexng72

It's actually my second winter here. I didn't have rusty issue last winter but it turned out pretty bad this season. You might wanna check out EBC red stuff for low dust pads. I heard some good reviews about them from ppl with other cars too not only with BMWs

Ah gotcha. I may still give em a shot considering i don't drive much in winter. I've had EBCs in the past but I got hooked on hawks after trying them, and their easier to find/cheaper in my experience.

Sounds good. Let me know how you feel about Hawks

5mall5nail5 · 01-20-2019, 06:29 AM

Hey guys - something you may want to consider here is not just the weight between the two style of rotors. If you guys are using the Brembo calipers then they're "fixed". They don't slide/adjust/float like the typical Bosch units with the separate caliper and "carrier" with slide pins. So, the idea behind the two piece rotor is to also allow for it to adjust and move since the caliper is rigid mounted to the spindle. A totally cast single piece rotor will not allow for this.

01-07-2019, 07:45 AM	#26
Logicoeur Lieutenant Colonel 990 Rep 1,934 Posts Drives: F30 335i xDrive Join Date: Feb 2018 Location: Boston iTrader: (0)	What's your aversion to having dimples on the rotors? __________________ F30 335iX \| Remus Axleback \| Fabspeed Catted DP \| VRSF Comp IC \| 18X9 ET35 19lb MT1 \| 255/40/18 ECS \| Ohlins RT Millway Street \| Millway Control Arm Bushings \| Turner Endlinks \| TMH 75mm 14x1.5 Studs \| BMW MPerf LSD \| XDelete \| Pipercross Filter \| MHD Stg2 93
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01-08-2019, 12:52 PM	#27
r1concepts Lieutenant Colonel 90 Rep 1,677 Posts Drives: 07' E90 335i Join Date: Jul 2009 Location: Cerritos, CA iTrader: (2)	Below are pictures of our aluminum riveted hat rotors (370mm) that are now available. Pricing will be updated in our thread by the end of the week.
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01-10-2019, 09:31 AM	#30
cfm56d7b Lieutenant General 5876 Rep 10,249 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	Nice thread. Subscribed. My rotors are coming up for replacement.
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01-18-2019, 12:01 PM	#34
alexng72 Lieutenant 147 Rep 503 Posts Drives: 2015 F32 435i Black Msport Join Date: Oct 2015 Location: Mason, OH iTrader: (0)	Updated*** I swapped out my R1 concept rotorsand pads for both front and rear with stoptech because of the squeaking noise in the cold. I noticed that the rotors were a bit rusty where the dimples were too. Very pleased with Stoptech so far.
	Appreciate 1 kern4174445.00 Quote

01-20-2019, 06:29 AM	#39
5mall5nail5 Not stock 472 Rep 617 Posts Drives: E34 525i Turbo Join Date: Oct 2008 Location: PA iTrader: (0)	Hey guys - something you may want to consider here is not just the weight between the two style of rotors. If you guys are using the Brembo calipers then they're "fixed". They don't slide/adjust/float like the typical Bosch units with the separate caliper and "carrier" with slide pins. So, the idea behind the two piece rotor is to also allow for it to adjust and move since the caliper is rigid mounted to the spindle. A totally cast single piece rotor will not allow for this. __________________ 2015 BSM 328i Sport Line - BSM 2015 BSM X1 M Sport - BSM 1992 525i 1987 325e
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