Is this brake pad wear pattern normal? Specifically.. the ridge at the top that wasn’t worn. More details in a comment..
by KitchenPalentologist
Is this brake pad wear pattern normal? Specifically.. the ridge at the top that wasn’t worn. More details in a comment..
by KitchenPalentologist
6 Comments
yes
No, definitely not. There shouldn’t be any ridge there. Your brake pads aren’t making full contact with the breaking surface of the rotor. You may have a spacer setup that isn’t quite right.
SRAM Force direct mount. This is posing an issue for two reasons:
1. My second wheelset has had a rotor rub that I frustratingly couldn’t tune despite trying all the tricks, and now after seeing this, I believe the edge of the rotors were rubbing this ridge.
2. I couldn’t insert a pad spacer due to this ridge (the red thing at the top of the photo).
There are no washers on the caliper, so I can’t really move it closer to the hub. I guess I just need to sand this down every few months going forward?
Before you ask.. yes, these are being replaced, and yes, I realize that used them a little too long.
That ridge indicates that there’s part of the pad not contacting the rotor. It looks like it’s gotten to a point to where they are contacting each other when you squeeze the brake. The pad wear is tapered towards the bottom.
A couple ways you could fix this,
1. Get new pads and keep an eye on wear
2. It’s possible based on what caliper you have and mounting system, to lower the caliper body a little bit. This way 100% of the pad is contacting the rotor. If you do this, I suggest getting new pads.
3. Get a wider rotor that allows for more pad surface area. That will allow for the entire pad to make contact with the rotor.
Not sure what kind of setup you have right now so more pictures of the bike and caliper mount area would be beneficial!
This happened to me when a break piston was seized.
This is normal on sram flat mount brakes. It shouldn’t happen but it does. They seem to have less leeway than shimano when it comes to frame geometry. I have seen this happen running sram pads, calipers, rotors, and adaptors.