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Galvanic

Brake rotor markings what does it mean

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Hey all my S15 has 95000 kays on it and i have some marks on both front rotors. I have Lucas TWR pads and have done one track day

 

Does anyone know what this means

 

20130331_103027.jpg

20130331_103052.jpg

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Has you're car been parked up for a bit? Looks like resting marks from the pads.

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I drive the car once weekly that's about the longest it has stood in one spot. There isn't any shuttering or weird feeling when braking.

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I cant feel it when i wipe my finger over it but i can feel it when i scratch it with my nail.

 

I measured the discs one is 29.51mm and the other one is 29.58mm and i think the manual said replace at 28mm

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Yeah, that mark is from where the pad has rested.

 

It'll go away after a few stops.

 

1.5mm is fine, but next time you replace the pads, replace the rotors as well.

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i wouldn't worry about it mate like tumbleweed said it looks like resting marks of the pads

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id say its just a little oxidization from water sitting between the pad and rotor bit of hard breaking would probably get rid of it

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Thanks guys, ill was worried because im going to wakefield tomorrow and it would suck if my brakes gave up half way through the day. Ill report when i get back from track on how they look.

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