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      11-06-2012, 11:44 AM   #71

Drives: 2009 135i 6MT
Join Date: Feb 2010
Location: Maryland

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2009 135i  [3.25]
Originally Posted by MteK View Post
The more disc surface area per unit mass ... the faster the heat will be dissipated and the more efficient the entire system will be.
I haven't heard that part before but it makes sense. So a heavier rotor can absorb more heat, but a lighter one the same diameter can dissipate heat faster.