Brake disc rusty after i change brake pad

[underage91]

Hi anyone know whats the cause of the rust on my brake disc after i change my brake pad. Only the rear disc got rusty. Front one is fine.

 

Sent from my SM-N9005 using Tapatalk

[nick_09]

Hi TS,

 

These usually happens when your ride is not in use for a long time. eg. layup period.

 

cheers.

[underage91]

But i ride my bike everyday. Or maybe they store the brake pad for a very long time?

Coz when i went to change, the bikeshop need to order the front pad but the back pad they have it in stock

 

Sent from my SM-N9005 using Tapatalk

[Manz17]

After you change your brake pads, your disc turn rusty? How about before?

[kinwei]

Could it be you mistaken the brake dust for rust?

[underage91]

Could it be you mistaken the brake dust for rust?

 

I tried to wipe it off but it wouldnt go off leh.

 

Sent from my SM-N9005 using Tapatalk

[qystan]

You can expect some rust in the morning on the face of the disc. It'll be gone after one or two brake applications. If it's the insides of the slots and holes, nothing yo be bothered about.

 

If rust is only on 1 face, your brake is only working on 1 side and needs to be checked.

[w7_lee]

I had this problem with the brake disc on my car. There is always rust on the disc in the morning and after I park for the whole day. It did not both me as the pads will rub off the rust when we brake.

 

The disc warp last year and I change a new set of disc & pads (DIY). Then I did a run in the brake disc & pad. Interestingly, it's coming to 10 months now and I've never notice rust on my front disc anymore.

 

Maybe it is because of the run-in I did on the brakes but am not sure about it. My bike does not give me this problem.