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breaking in discs and pads?

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breaking in discs and pads?

Old 01-17-06, 04:19 AM
  #1  
aussiematt
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breaking in discs and pads?

how do you do it, does anyone know how to prevent glazing?
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Old 01-17-06, 11:55 AM
  #2  
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glazing is usually from prolonged braking when you are getting things too hot for the caliper/rotor to properly dissipate the heat. either swap to some better pads (ebc makes some great pads, as does galfer) or go to the next rotor size up.

breaking in brakes usually takes a half or a dozen quick hard stops to seat everything well, and burn in the pads/rotors decently. more or less, just depends on your brake setup.
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Old 01-21-06, 12:43 PM
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bump
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Old 01-21-06, 12:54 PM
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some guy from Hayes on another forum says mtb brakes don't get that hot.

anyway...don't worry about glazing of the pads. this is more of a concern in something with an engine. unless you plan on going down a ski mountain or something with your bike. if you're just doing "regular" riding...you are not going to have glazing issues.

your setup should be primarily "broken in" with in a few short rides. like what the other poster already said. it could take much longer for full break in, but you won't notice nearly the difference that you do within even just the first hour or two riding them.

Last edited by mx_599; 01-21-06 at 08:26 PM.
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Old 01-21-06, 12:59 PM
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there was a poster a little back that was having issues with his new pads glazing.
like stated before short ,quick bursts. get going on a flat section and hammer down on the breaks for short bursts. the harder and quicker the better.
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Old 01-21-06, 01:52 PM
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Originally Posted by iamthetas
there was a poster a little back that was having issues with his new pads glazing.
like stated before short ,quick bursts. get going on a flat section and hammer down on the breaks for short bursts. the harder and quicker the better.
that is just it...just because that poster thought they had glazing, doesn't mean they did the fact that they were inquiring about glazing would lead me to believe that they misdiagnosed their problem in the first place!
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Old 01-21-06, 07:56 PM
  #7  
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I don't care whether the head of hayes said mtb's don't have their pads glaze, it can and does happen. Only a problem in the DH world, but I have seen glazed pads. Try doing 7minute fullspeed DH runs with bad technique, it is very easy to WAY overheat your pads. At thredbo mountain there have been photo's taken of people and you can see glowing rotors........

All you need to do to break in disc brakes is ride them like normal. Do some hard stops and in a couple of rides they will be at full performance. If it is real hard braking, o na DH track you could have your breaks working best after less than 10 hard braking zones.
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Old 01-21-06, 08:31 PM
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Originally Posted by Hopper
I don't care whether the head of hayes said mtb's don't have their pads glaze, it can and does happen. Only a problem in the DH world, but I have seen glazed pads. Try doing 7minute fullspeed DH runs with bad technique, it is very easy to WAY overheat your pads. At thredbo mountain there have been photo's taken of people and you can see glowing rotors........

All you need to do to break in disc brakes is ride them like normal. Do some hard stops and in a couple of rides they will be at full performance. If it is real hard braking, o na DH track you could have your breaks working best after less than 10 hard braking zones.
DH is different...or anything similar. XC riders shouldn't have glazing issues.

i never said i agreed with the dude from Hayes. not saying much for their gurus over there if they didn't know that bicycle rotors get hot.
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Old 01-21-06, 10:06 PM
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i heard that putting DOT fluid on the pads des something. i dont know if it will help glazing though
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Old 01-22-06, 12:35 AM
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Originally Posted by onelessunicycle
i heard that putting DOT fluid on the pads des something. i dont know if it will help glazing though
It'll do something alright - contaminate your pads; at least according to Avid.
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Old 01-22-06, 02:04 PM
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Originally Posted by mtb-chop
It'll do something alright - contaminate your pads; at least according to Avid.
avid doesnt know anything
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Old 01-22-06, 02:42 PM
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Originally Posted by meridebikes
avid doesnt know anything
niether do you it seems.

brake fluid on your pads gets absorbed and leaves a residue in the compound, this results in the pad crumbling and losing its adhesion power - resulting in brakes that have no bite or stopping power.

only use warm water and washing up liquid (or any cleaner that specifically states that its dic brake safe) to clean up your calipers and pads. - you can use meths or other agressive cleaners to spiff up your rotors, as long as you take the wheel out of the bike 1st, and be sure to thoughrly rinse off the rotors after theyve dried before putting em back in.
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Old 01-22-06, 04:17 PM
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Originally Posted by mx_599
that is just it...just because that poster thought they had glazing, doesn't mean they did the fact that they were inquiring about glazing would lead me to believe that they misdiagnosed their problem in the first place!
it was his LOCAL BIKE SHOP that diagnosed it
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Old 01-22-06, 05:26 PM
  #14  
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Originally Posted by iamthetas
it was his LOCAL BIKE SHOP that diagnosed it
still means nothing to me. they might know what they're talking about and they might not. it does sound a little more credible now though.
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Old 01-23-06, 03:19 PM
  #15  
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to speed up the breaking in process smudge some wet mud on the disc and ride around for 5-10mins with the brakes half on. sounds strange but give it a go, it worked for me!!
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Old 01-23-06, 03:34 PM
  #16  
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10 -12 fast hard squeezes is much faster and cleaner
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