Buying Rotors
Senior Members
Joined: Aug 2008
Posts: 639
Likes: 0
From: SoCal
OEM rotors are two piece construction to save weight (less unsprung weight). I am not sure if R1 rotors are the same. Maybe one of the vendors can clarify. It would also be interesting to compare their weigh against OEM.
I have Hawk HPS pads with OEM rotors and they seem to be ok. Stopping power is about as good as OEM with significantly less dust.
I have Hawk HPS pads with OEM rotors and they seem to be ok. Stopping power is about as good as OEM with significantly less dust.
Anytime you upgrade AND can shed unsprung weight is a bonus!
Members
Joined: Jul 2009
Posts: 198
Likes: 0
From: Chicago, IL
Well, I don't necessarily see going to R1 concept rotors as an upgrade. Logically a two piece construction with some sort of an aluminum-like alloy in the center will save weight. Quality and performance? I cant really speak for that since I never had them. Price? I think they are close to OEM with OEM being $140 a piece (for my car - 2007 550i).
I was actually hoping for one of the vendors to provide the weights since they use these on their own cars.
I was actually hoping for one of the vendors to provide the weights since they use these on their own cars.
Former Vendor
Joined: Apr 2008
Posts: 5,051
Likes: 1
From: SoCal
My Ride: 14 550i
Well, I don't necessarily see going to R1 concept rotors as an upgrade. Logically a two piece construction with some sort of an aluminum-like alloy in the center will save weight. Quality and performance? I cant really speak for that since I never had them. Price? I think they are close to OEM with OEM being $140 a piece (for my car - 2007 550i).
I was actually hoping for one of the vendors to provide the weights since they use these on their own cars.
I was actually hoping for one of the vendors to provide the weights since they use these on their own cars.
R1 Blank Rotors (Direct OE Replacement)
F: $170/pair @ ~22 lbs
R: $155/pair @ ~19 lbs
Can't speak to OE weight because I've never weighed them and don't have any around to weigh.
Michael
Owner
Acute Performance
Members
Joined: Jun 2008
Posts: 112
Likes: 0
From: San Jose, California
My Ride: 2004 525i, Metalic Gray, Premium Package
I am looking for the following for my 2004 525i Jan production:
1. Front pads
2. Front rotors
3. Rear pads
4. Rear rotors
The pads need to be low dust. And I don't need slotted rotors. Let me know your suggestion and price.
Thanks!
1. Front pads
2. Front rotors
3. Rear pads
4. Rear rotors
The pads need to be low dust. And I don't need slotted rotors. Let me know your suggestion and price.
Thanks!
Members
Joined: Dec 2011
Posts: 177
Likes: 0
From: Washington USA
My Ride: 2010 BMW 550i M Sport. GPS, Satallite, Active suspension, Silver over Black in color with beige. 68k on the clock. My 10th BMW in forty years.
Model Year: 2010
Engine: 550 Msport
Contributors
Joined: Mar 2009
Posts: 606
Likes: 1
From: OK
My Ride: 540i
Model Year: 2017
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