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Old 05-30-2011, 10:14 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by Joe@Bavarian View Post
Cheap rotors have a larger vein area so they can use less metal
Interesting that vein area is something to look for.

So the question would be whether the vane area is similar or not in the most-often-recommended E39 replacement rotors:
Quote:
Most often recommended replacement rotors:
- ATE solid (Premium One brand is OEM?)
- Balo (which model?)
- Brembo solid (which model?)
- Centric Premium ?model
- Zimmermann ?model
BTW, over in this thread today:
- Yet another rotors/pad question

A reference was made to a nice treatise of drilled vs slotted vs solid rotors (although this thread is only about OEM-equivalent rotors):
- Cross drilled rotor myths dissolved

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