What is causing my front brake to shudder/vibrate? The rotor is clean and true, the pads are new-ish and aligned meticulously so that both pads grab the rotor together with no rotor bend.
These are the new style XT brakes with an Avid 8" wavy rotor.
Disc brake shudder? XT
Is the headset tight?
I found uneven wear on the pads does this to the brake. it's hard to tell by looking at the pad but sanding pads down a bit works, if not new brake pads.
Rotor bolts/center lock loose?
Is the headset tight?
I've had this happen.
Hold the bike up, lock front brake with one hand, hold other hand around bottom or top cup of headset, then try and push bike back and forth. Should be no play in headset.
It is easy to dodge our responsibilities, but we cannot dodge the consequences of dodging our responsibilities.
- Josiah Stamp
Every time I see an adult on a bicycle, I no longer despair for the future of the human race.
- H.G. Wells
I've never had good luck with Avid rotors. Have you tried systematically removing one element at a time and seeing what happens? ie: try a different rotor, then try different pads then a different wheel, then if all else fails, a bleed.
Rotor. Get a a Shimano rotor.
Rotor. Get a a Shimano rotor.
Yup. Avid rotors = shudder
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