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      06-19-2019, 12:23 PM   #4
NickG_TechniqueTuning
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Drives: 2011 BMW 550i M-Sport
Join Date: May 2009
Location: South Florida

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Quote:
Originally Posted by _des_ View Post
E60 M5 calipers use a dual Piston Caliper. Each piston is 42mm(84MM combined)
the Alpina is still a single piston 60mm piston. So the piston size alone is about 40% bigger.
Unfortunately another example of a failed education system

Two 42mm pistons have a combined surface area of 2771 square mm.

A single 60mm piston has a surface area of 2827 square mm.

They're essentially the same.
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