JAndersson

Have had R1 drilled and slotted rotors for over a year now and they have worked excellent. Still looks almost as new. A huge improvment over the stock ones I had before in performance. But to be fare, they where in really bad shape.

And I can't see why a drilled and slotted rotor should be worse than a blank one. Only reson I can see why not so many standard car has them is that they are more expensive to manufacture and doesen't give that much of a improvment in braking performance at normal use. But they do look nice