My hope disc brakes are rubbing like mad!

Ashman1234
Ashman1234 Posts: 10
edited June 2008 in MTB workshop & tech
I have just bought a secondhand bike with hope disc brakes. The problem isn't when i'm braking but its when i'm not. Its like an on and off rubbing. I've tried changing the position of the wheel and nothing seems to make a difference.

Comments

  • nicklouse
    nicklouse Posts: 50,673
    So what hope brakes are they? what have you done to them?

    pulled the levers while the disc were not there? push the pistons back.

    More info needed.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • Ashman1234
    Ashman1234 Posts: 10
    nicklouse wrote:
    So what hope brakes are they? what have you done to them?

    pulled the levers while the disc were not there? push the pistons back.

    More info needed.

    They are Hope M4's, i did pull the lever when they wern't there but we reset the pistons.
  • stu8975
    stu8975 Posts: 1,334
    On off rubbing....is your rotor bent? sticky piston?
    ANTHEM X
    Youth
  • icedmind
    icedmind Posts: 206
    is the frame faced? or the fork?

    did you try to space it up with some spacer(good ones that even on both side)
    08 Swork Stumpy FSR with 3 brains
    "2Brains. A Singletrack Mind ", from specialized <<<suppose if the rider doesnt have one
  • Harveytile
    Harveytile Posts: 227
    I have a similar and annoying problem with a noisy front brake (Hope Mono Mini 07). I think the whole forest can hear me even when just pushing the bike along! i will be servicing them shortly but it seems to be a recurrant problem with Hope Mini's, same problem with 04 Mini's on my last bike (sold it and moved country so no more problem with noise!). i am on the verge of tossing out the Hope(less) and replacing with reliable Big S!
    .
    Beep Beep Richie.
    .

    FCN +7 (Hanzo Fixed. Simple - for the commute)
    FCN +10 (Loud and proud PA)
  • stu8975
    stu8975 Posts: 1,334
    Ahh lovely hope brakes...it seems a few people lately are having probs with them..saying that...ive just sorted mine from having a sticky front piston...and like mentions i had one on my 04 mini's aswell...and hears me considering getting some mini pro's...mmmmm
    ANTHEM X
    Youth
  • Ashman1234
    Ashman1234 Posts: 10
    how did you fix the sticky front piston?
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