Drilled rotors, stator cover and clutch cover?

I was looking at a few other cafes on another site and I really like the look of drilled rotors, stator cover and clutch covers. Has anyone on here done this?

Rotors-

  1. At which point do I need to worry about the integrity of the rotor itself?
  2. Anyone have a write-up for doing this?

Covers-

  1. Are there any draw backs to drilling the covers? Rain, dust, dirt, grime, etc? I was thinking about drilling them out and then using some thin plexiglass inside of them to keep stuff out but not 100% sure about it. id rather have it open (ventilation, aesthetics) but again, not sure if there are any draw backs.

Any tips, tricks, advise is appreciated.

idk about drilling your own rotors, but i do know that a couple riders on some forums have had their original rotors till about 50k miles

also on the cover, my old bike was put down before i bought it, and there was a hole in the stator cover, nothing bad seemed to happen over the 2 years i owned it, but i cant imagine it was good for it, im sure if it needed ventilation it would already have holes, but if you like the look idk what ta tell ya

Driling rotors is fairly easy to do. With that said its also pretty easy to mess up a good set of rotors. Not a metalurgist but from what i have noticed most modern day (motorcycle) rotors seems to be made of a mutch harder metal then the old school thicker brake rotors. Potentialy the older rotors could be made of a softer material and that might cause roblems if the rotors all of the sudden become too “holly”. I guess a good rule of thumb is dont go nuts with the drill press. A simpler alternative would probably be to try a different type brake pad.

As far as drilling the covers is concerned. Usually its done to discipate heat. For example some of the older bikes i have seen have had the sides of the rear drum brake drilled so as to allow it to cool off faster. The same could also be benefficial to a clutch cover provided that its a dry clutch and not a wet clutch. Drilling a stator cover could also be a good thing but you have to take into consideration that the space between the stator and rotor is usually pretty damn small and if a tiny ass peble managed to work its way between them then you could potentialy destroy pretty pricy part.

:lol: