I have Shimano mt200's front and rear. Than b05s resin pads with the sm-rt10 160mm rotors and everytime i ride they keep glazing to the point where it gets annoying. I tried te remove all the left over resin from the pads on the rotors than do some standing on the rotor than clean with ice proper alcohol. Than get different sandpaper make the surface from the pads look like new and not black. Than try and bed them in again and the same happens within 2-3 rides and they loose their power completely. Help me what can i do ? (I have only had the rotors and pads for 2 months and i have had to do this 3x already). The image is before removing any left over resin from pads on the rotor
by Maxyboy112
4 Comments
Are you sure the pads are not contaminated? Once they are contaminated, it’s unlikely that they will clean up over time or be able to be un-contaminated. The resin pads are also not intended for high temps, so if you are pushing the limits on braking you may be better off with a metallic pad or just a different pad.
If you switch to a metallic pad, check that your rotor is compatible. Some Shimano rotors are for “Resin Only” and will be identified as such on the rotor.
Personally I’d get new pads at that point. You’ve done everything that you should do. It’s possible that they were contaminated, counterfeit, or possibly just came from the factory with something wrong.
I had the same issue with my mt200. Tried the sanding trick twice and no change to the squealing noises and loss of power. New pads solved the problem.
I think I also had b05s pads before. I put in some DBP-10 pads I got from my work and no problems since.
Contaminated pads can be nearly impossible to fix. Get new pads, sand and isopropyl the rotors and then you should be good to go. If they glaze over again you likely have a leaky calipers and need to replace. If it’s on both that’s quite unlikely