rusty rotors

[mr Mag00]

I have developed some rusty rotors, its on the machined cut out surfaces, any ideas for cleaning it up.

could i use a cleaner of some description and then get some of that disc brake cleaner would this help. the braking surface is clean but they do look awful.

 

[mickle]

Surprising, I thought all cycle discs were made of stainless..

Avoid automotive disc brake cleaner which is designed for cast iron discs and therefore contains oil to prevent oxydisation but will contaminate your pads.

 

[Tim Bennet.]

Go to top of hill.
Whizz down.
Apply brakes.
Job done.

 

[hubgearfreak]

Avoid automotive disc brake cleaner - therefore contains oil

i'd be very surprised if this was true.

as tim says, just ride it, the rust will soon go

 

[Globalti]

contains oil to prevent oxydisation

I've seen this popular myth repeated elsewhere, I wonder how it started?

 

[LLB]

Surprising, I thought all cycle discs were made of stainless..

Avoid automotive disc brake cleaner which is designed for cast iron discs and therefore contains oil to prevent oxydisation but will contaminate your pads.

What a lot of tosh

They are made from Acetone and/or Naptha, they contain no heavy oil components.

 

[Globalti]

It's so ridiculous - imagine for a moment you sprayed your brakes with a cleaner containing oil. The first time you braked, they wouldn't work. Eventually by the time you'd collected a taxi, a couple of cyclists and two or three mums with prams in your radiator grille, the oil would burn off. Then your brakes would go rusty, supposedly!

 

[mickle]

Just repeating what I was told by the finest professional down-hill racing team mechanic I know, who reckons it contaminates the kind of disc brake pads found on bicycles.

Since everything else he has ever told me was sound I have no reason not to believe him on this subject.

I am quite happy to be proved wrong. Just not by Limpford.

 

[mr Mag00]

well i am glad someone has answered my question

 

[mickle]

I didn't think anyone had yet.

Wire wool every few weeks or buy non rusting rotors.

 

[mr Mag00]

i was being sarcastic, its just the machined surfaces where they have cut out shapes not the braking surface as i say in OP

 

[mickle]

i was being sarcastic, its just the machined surfaces where they have cut out shapes not the braking surface as i say in OP

Yeah I knew that.

Wire wool every few weeks or buy stainless rotors.

 

[LLB]

Just repeating what I was told by the finest professional down-hill racing team mechanic I know, who reckons it contaminates the kind of disc brake pads found on bicycles.

Since everything else he has ever told me was sound I have no reason not to believe him on this subject.

I am quite happy to be proved wrong. Just not by Limpford.

Hurts doesn't it

 

[mickle]

Hurts doesn't it

You have proved precisely nothing.

 

[LLB]

You have proved precisely nothing.

I'm happy with knowing that