[Closed] When to change disc pads

When there's metal rubbing on your disc and all of the pad material has worn away. That's when I change them anyway. You could change them earlier to be on the safe side but you'll end up spending more money in pads.

I would try not to get metal on metal contact = you can score your discs. I change 'em when they are paper thin

I have hopes and the springs start to rub on the disc as the pad is on its last legs so thats a good warning

Im rather decadent and change mine when they're around 1/2mm as I hate running out of pad mid descent.

Does scoring the discs actually cause problems? I am skeptical.

A bit of scoring, no - really, the bigger problem is metal-on-metal doesn't provide as much friction.

A few pads have a wear groove in them - when the groove is gone, replace - but with most it's easiest to just eyeball from the top.

Well yes. I only ever change my pads when I can hear the metal-on-metal.

When it's metal on metal and there squeeling like a banshee.

When they look like they could do with it... Otherwise that metal-on-metal contact tends to end up happening at a really irritating time.

Remember, just because you've removed a set of pads doesn't mean they have to go in the bin, if they've got any meat on them then they still make useful spares... If you need to do a trailside replacement it's easier to fit a half-worn pad, and they won't need much bedding/mating in done either.

Well yes. I only ever change my pads when I can hear the metal-on-metal.

me too , i have to save my budget for some time ! 🙂
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Does it go bad or not work well as before?If it doesn't work well enough,it is time for you to change a new one