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Fitted some new pads to for my Formula Ones yesterday and they're rubbing to the extent that neither wheel spins freely. I even tried fitting the rear with the bleed nipple open and then doing a rebleed. Is this normal and they'll just wear away pretty quickly or is something amiss?
They certainly didn't wear away much during the ride I had today, if anything they got worse though that might have just been my legs getting rather tired!
Is the backing on the pads bare metal or are they the black painted one's? If they're painted, sand it off the back of them.
From my (limited) experience, use them as hard as you can to get them bedded in, and they'll sort themselves out pretty soon.
Did you press the pistons all the way back?
Yeah I pressed the pistons right back, even did it with the bleed screw open on the rear and syringe attached on the front. I'll try sanding the paint off if there is any, otherwise I'll just man up and wear them down! Thanks guys!
OK so this issue isn't going away fast and it's making me somewhat exhausted on rides! A mate and I resorted to sanding down the pad itself today but whilst it did make a small difference the binding is still pretty bad - no paint on the rear of the pad either. I'll probably just keep riding until they sort themselves out BUT is this normal? This is the first time that I've replaced the pads on these brakes and is it something i just need to be prepared for each time or is it maybe down to the pad manufacturer?
I put some Swisstop pads in my R1s recently and found them to be a touch thinner then any other pad I've tried in my Formulas before. The opposite effect to what you seem to have. Could give them a try? Not cheap tho...
I know you have pushed the pistons back in but did you have your tongue out whilst doing it. I find during a difficult task a dangling tongue makes all the difference
- seriously, pistons pushed all the way back in & still rub? It shouldn't do and I use formula.
Yup all the way back. I suspect that the pads might be thicker than the official ones as they're disco pads? Doesn't seem right that I had to fight to get the wheels in initially after changing though!
Maybe use a new pad on one side and an old and the other giving a little more room? Until you wear the new one out slightly then install the 'other' new pad. Does that make sense?
Maybe use a new pad on one side and an old and the other giving a little more room? Until you wear the new one out slightly then install the 'other' new pad. Does that make sense?
That's what I'm doing with my Oros until I can clean the pistons properly to see what's going on.
Yeah that's good idea, I do have a habit of replacing pads when they're just about dead so don't have any spare ones but I'll have to start changing them over before they die and keep some form of rotation on the go 🙂
Have you tried aligning the callipers?
Try lubing the pistons Chvck, I did this with some of my K24s on my Trek (previously on my heckler and mojo) that did the same with good results, Use a bit of brake fluid and paint on to the pistons with the pads out. You can press the brake lever to push the pistons out slowly, clean the pistons with a cotton bud and then add a bit of brake fluid and then push the pistons fully back. Slowly press the brake lever to push the pistons out checking they come out evenly (guess you've probably done this already). If one is slower then that one needs more cleaning.
Have you entered the Coedy enduro? Registration is tonight!
Have you tried aligning the callipers?
Yup!
I'll give lubing the pistons a go and see if that helps :). I haven't entered the enduro, not sure if I want to do it yet, going to wait till closer to the time and try get a ticket from someone who can't make it if I decide to do it.
Had this problem with my oro's and ran them for a while knackering the seals, if i was you i'd be cautious and perhaps take a bit off the pad.