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Brake Discs - when ...
 

[Closed] Brake Discs - when to replace ?

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[#4268252]

Ive never had Hydralic Brakes till this bike so just wondered what are the signs that Brake Discs need replacing ?

Ive gone through a couple of sets of pads, so is it like a car replacing them when theres a "lip" on the disc, or is it just a routine job.

They are Avid Elixr 3 brakes on an Orange G3.

Thanks.


 
Posted : 16/08/2012 6:36 pm
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for wear you will probably notice a lip from the spoke part where the pad doesnt rub to the friction area.

or when you have major scoring

or if you bend it too bad

edit: there is probably a thickness limit somewhere.


 
Posted : 16/08/2012 6:37 pm
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In all my years riding discs, I've only ever changed one because it was worn. That was a rear avid on the wife's bike. She's since learned to brake properly.


 
Posted : 16/08/2012 6:46 pm
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They usually have a thickness etched onto the disc some where. I find they start to warp when they get too thin


 
Posted : 16/08/2012 7:54 pm
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Replace them once there is a noticeabe deep groove worn into the middle of the braking surface.

I generally get a season of Alpine riding out of a cheap set. Hope V2 floating rotors have now done nearly 2 full seasons, but definitely getting a bit mis-shapen now.

I have seen quite a few discs fail spectacularly from being allowed to get too thin!


 
Posted : 16/08/2012 11:10 pm