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Yep, makes for a stress concentrator and crack propagation point.

I personally can't see the need for dimpled but definitely get slotted to assist with offgassing the pads/disc interface and to maintain a clean pad face.

I prefer RDA discs, and have a major dislike for DBA.

Under hard use drilled rotors are more prone to failure than plain or properly slotted rotors.

On the street with lower braking loads/temps/heat cycles it probably doesn't matter that much.

Looks versus function.

Then again, on the street, any gain from having drilled rotors is probably negligible.

I've found that drilled rotors usually crack. e.g. if you have a look at the standard 32 gtr drilled rotors, they're usually cracked

Then again, on the street, any gain from having drilled rotors is probably negligible.

I've found that drilled rotors usually crack. e.g. if you have a look at the standard 32 gtr drilled rotors, they're usually cracked

Yup!

Hence the looks versus function comment.

I personally wouldn't use drilled on my cars but some people just love that drilled look.

Exotic???

definently dont go the drilled rotors, they are only for looks.

even the ceramic discs on a porsche crack.... but one strange thing is that the front disc on my motorbike has no cracks in it... its drilled, and its now worn thin enough i need to replace it????

slotted rotors are fine for the street and track.

my dad has dba slotted on his landcruiser front and rear, and my mum has slotted rotors on her forester (NA)

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