Quote:
Originally Posted by randomquickness
^ so are any companies making slotted rotors for 1 series?
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I'll be interested in those when it happens.
Slotted rotors do have a purpose. I guess for some applications (reduction of mass for motorcycles), drilled rotors have some functionality as well (along with allowing trapped gasses to escape), but for cars I am also of the impression that it mostly cosmetic.
Race cars use slotted rotors - the slots clean the pads and allow the trapped gasses to escape.