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      11-02-2018, 01:48 PM   #75
.BMW.
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Drives: BMW F11/F31
Join Date: Jun 2013
Location: Sweden

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You are correct, weight is definitely a concern here. Unsprung weight affects both handling and acceleration.

My upgrade from 348x36mm rotors (12.3kg) to 374x36mm (13.8kg) added 1.5kg per side since the same calipers was used. For me it was worth the added weight.
Appreciate 1
John H.230.00