Excessive Brake Wear
timmy500
Posts: 8
Hi
I'm wondering if anybody can help?
I ride a Giant Anthem X 29er, running on Shimano M395 callipers/rotors. The rear brake pads are excessively wearing, to the point where I installed new pads only two weeks ago, and today they began squealing on my commute to work and by the time my ride home took place, they had all but completely faded. The front brake is fine and wears at what I would consider normal rate.
When I say the brakes are wearing quickly, when I actually come round to changing them, there is plenty of meat left on them, but the pad surface is very smooth and so is obviously not gripping the rotor properly.
At first I thought I was using the wrong pads when I replaced them, and so have tried different types including M05 and B01S, both resin and both wear out very quickly.
My riding over the last couple of weeks has mainly been road running, with only some minor off road stuff and so the demand on the brakes has not been at all high.
Would you think that the best course of action would be to replace the rear rotor and go from there?
Thanks in advance
Tim
I'm wondering if anybody can help?
I ride a Giant Anthem X 29er, running on Shimano M395 callipers/rotors. The rear brake pads are excessively wearing, to the point where I installed new pads only two weeks ago, and today they began squealing on my commute to work and by the time my ride home took place, they had all but completely faded. The front brake is fine and wears at what I would consider normal rate.
When I say the brakes are wearing quickly, when I actually come round to changing them, there is plenty of meat left on them, but the pad surface is very smooth and so is obviously not gripping the rotor properly.
At first I thought I was using the wrong pads when I replaced them, and so have tried different types including M05 and B01S, both resin and both wear out very quickly.
My riding over the last couple of weeks has mainly been road running, with only some minor off road stuff and so the demand on the brakes has not been at all high.
Would you think that the best course of action would be to replace the rear rotor and go from there?
Thanks in advance
Tim
0
Comments
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Sounds like you drag your back brake. They are not wearing out, or would have no pad left. They are glazing.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
That would make sense yes. Will try spacing the pads apart more and see if that makes a difference.
Thanks for your help.0 -
Will not change anything.That would make sense yes. Will try spacing the pads apart more and see if that makes a difference.
Thanks for your help.
They will adjust to where they should be when you use them.
Don't drag them squeeze and release."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
Will not change anything.That would make sense yes. Will try spacing the pads apart more and see if that makes a difference.
Thanks for your help.
They will adjust to where they should be when you use them.
Don't drag them squeeze and release.
Ah, ok, so down to my riding style then? Will address that.
Cheers!0 -
If you're using the back brake a lot to slow down, it's the front brake that does most of the work and should be used harder.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Also be careful when putting oil on the chain etc sounds like you've contaminated the pads, rear brakes are more likely to make noise.
When you put the new pads in, did you do a few hard stops to bed in the rear brake?0 -
try some sintered pads on the back instead? i find the resin wear quickly and don't bite that well0
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Ok thanks for the advice all. I'm pretty confident that I haven't contaminated the pads, I'm always care that when I clean the bike, I mask those areas.
Will try a combination of changing my braking style and maybe give the sintered pads a go. Also, up until now, I didn;t know about the importance of bedding pads in, will also do that from now on.
Stupid question, but can sintered pads be used with 'resin only' rotars?0 -
Not stupid question, but yes they can be. Used M395's with Sintered pads on resin only rotors for two years absolutely fine.Framebuilder
Handbuilt Steel 29er https://goo.gl/RYSbaa
Carbon Stumpjumper https://goo.gl/xJNFcv
Parkwood:http://goo.gl/Gf8xkL
Ribble Gran Fondo https://goo.gl/ZpTFXz
Triban:http://goo.gl/v63FBB0 -
Not stupid question, but yes they can be. Used M395's with Sintered pads on resin only rotors for two years absolutely fine.
Great, thank you0 -
Not stupid question, but yes they can be. Used M395's with Sintered pads on resin only rotors for two years absolutely fine.
Out of interest, what make/type of sintered pads did you use?0 -
SuperstarFramebuilder
Handbuilt Steel 29er https://goo.gl/RYSbaa
Carbon Stumpjumper https://goo.gl/xJNFcv
Parkwood:http://goo.gl/Gf8xkL
Ribble Gran Fondo https://goo.gl/ZpTFXz
Triban:http://goo.gl/v63FBB0 -
Superstar
Cheers0 -
No problem mateSuperstar
CheersFramebuilder
Handbuilt Steel 29er https://goo.gl/RYSbaa
Carbon Stumpjumper https://goo.gl/xJNFcv
Parkwood:http://goo.gl/Gf8xkL
Ribble Gran Fondo https://goo.gl/ZpTFXz
Triban:http://goo.gl/v63FBB0 -
I'm very happy with my super star organic pads for what it's worth.. I have no idea what pads were on my bike from new but they got progressively worse over about 10 months, stuck the new pads in, hardly any adjustment needed, and i can now lock my back wheel up or throw myself over the bars with ease!
Similar issues to you, the original pads did have some wear on them, but still had some decent meat on them.
I considered sintered /metallic pads as replacements but for the price and bite of the organics, I don't mind how fast they wear out.0
