modifiedridah2k9 Posted March 19, 2010 Report Share Posted March 19, 2010 (edited) i keep having problems with my back brake pads:(. they keep rubbing so i ride it for a bit then it goes away and randomly comes back. when im riding my bike goes slower and slower cos the rub is so bad. any help please? my brakes are magura hs33's if that helps? PLEASE HELP WBS NEED VALIDATED. PLEASE VALIDATE IF YOU WANT Lol.cheers Edited March 19, 2010 by modifiedridah2k9 Quote Link to comment Share on other sites More sharing options...
ginger allen echo Posted March 19, 2010 Report Share Posted March 19, 2010 You have probably got sticky pistons. You just need to lube the piston and they will be fine. Also your brake pad backings might be worn and could be wobbling on the piston Quote Link to comment Share on other sites More sharing options...
WxmTrial3Style Posted March 20, 2010 Report Share Posted March 20, 2010 Pretty new myself to be honest. But with V-Brakes their is a screw [if you're using them] and you can tighten/loosen accordingly if this is what you are doing i reccomend putting a locking nut on it... Quote Link to comment Share on other sites More sharing options...
Bobo_Grimmer Posted March 20, 2010 Report Share Posted March 20, 2010 You could try to re-set up the break from scratch and see if your still getting a problem. Take it off and clean everything up. I use some gt40 and a tooth brush try setting it up again kinda like this vid http://www.tartybikes.co.uk/media.php?group=guides&id=3 May help Quote Link to comment Share on other sites More sharing options...
Sam Styles Posted March 20, 2010 Report Share Posted March 20, 2010 take the pistons out of the clamps, squeeze the lever so the pistons come out a bit. Then you lube the pistons up a bit. i have done this before as my brake pads kept sticking. i also re-bleed my brake. hope this helps Quote Link to comment Share on other sites More sharing options...
alder93 Posted March 20, 2010 Report Share Posted March 20, 2010 Off everyones replies they're thinking the brakes sticking on. But you havnt actualy said if its sticking when you pull or, like mine was, the whole caliper was too close and even when fully released it was still slightly touching at times (because i had a buckle in the wheel too) They might just need moving out like in bobo_grimmer's post... Quote Link to comment Share on other sites More sharing options...
PeanuckleJive Posted March 20, 2010 Report Share Posted March 20, 2010 (edited) Use some GT85 on your pistons. You could try to re-set up the break from scratch and see if your still getting a problem. Take it off and clean everything up. I use some gt40 and a tooth brush try setting it up again kinda like this vid http://www.tartybikes.co.uk/media.php?group=guides&id=3 May help GT40? o.O Edited March 20, 2010 by PeanuckleJive Quote Link to comment Share on other sites More sharing options...
Ollied Posted March 20, 2010 Report Share Posted March 20, 2010 Another thing to note is that you haven't put too much tar on, if you have just ride it off.. Quote Link to comment Share on other sites More sharing options...
Bobo_Grimmer Posted March 20, 2010 Report Share Posted March 20, 2010 Use some GT85 on your pistons. GT40? o.O LMAO Doh Thats what i spost to have said GT85, Tee hee! Man my memory recall is fooked this week....... Quote Link to comment Share on other sites More sharing options...
maundy Posted March 20, 2010 Report Share Posted March 20, 2010 ye maybe if u run loads of tar it wil stick on. try getting brake cleaner from halfords or somewhere and give the rim a blast and start fresh. or take out rear pistons and clean them up. use minrel oil or magura blood to lubracate the piston when it goes back in so u dont flip the seals or damage them.. Quote Link to comment Share on other sites More sharing options...
rab shropshire Posted March 21, 2010 Report Share Posted March 21, 2010 Is your back wheel straight in the dropouts mate, remember like i showed you with the chain tugs, me and fiona should be coming up to inverness in a week or two so il sort your brake out for you, il bring my bike up and il come for a ride with you and your mates Quote Link to comment Share on other sites More sharing options...
modifiedridah2k9 Posted March 21, 2010 Author Report Share Posted March 21, 2010 Pretty new myself to be honest. But with V-Brakes their is a screw [if you're using them] and you can tighten/loosen accordingly if this is what you are doing i reccomend putting a locking nut on it... no im using hydrolics. Thanks anyway Off everyones replies they're thinking the brakes sticking on. But you havnt actualy said if its sticking when you pull or, like mine was, the whole caliper was too close and even when fully released it was still slightly touching at times (because i had a buckle in the wheel too) They might just need moving out like in bobo_grimmer's post... yeh i moved the pads backwards but they just go in again. Off everyones replies they're thinking the brakes sticking on. But you havnt actualy said if its sticking when you pull or, like mine was, the whole caliper was too close and even when fully released it was still slightly touching at times (because i had a buckle in the wheel too) They might just need moving out like in bobo_grimmer's post... yeh i moved the pads backwards but they just go in again. Quote Link to comment Share on other sites More sharing options...
modifiedridah2k9 Posted March 21, 2010 Author Report Share Posted March 21, 2010 You could try to re-set up the break from scratch and see if your still getting a problem. Take it off and clean everything up. I use some gt40 and a tooth brush try setting it up again kinda like this vid http://www.tartybikes.co.uk/media.php?group=guides&id=3 May help that was really helpful.ill try this out and let you no if it works Quote Link to comment Share on other sites More sharing options...
josh barker Posted March 21, 2010 Report Share Posted March 21, 2010 ye maybe if u run loads of tar it wil stick on. try getting brake cleaner from halfords or somewhere and give the rim a blast and start fresh. or take out rear pistons and clean them up. use minrel oil or magura blood to lubracate the piston when it goes back in so u dont flip the seals or damage them.. thats for disc brakes, if you put that on a rim brake it will get contaminated Quote Link to comment Share on other sites More sharing options...
multi tasking male Posted March 21, 2010 Report Share Posted March 21, 2010 if your running the evo adapters then you are ment to have a washr underneathe them to stop them from moving in. It could be that you pull the brake on and it pushes them out and then it just goes in and stays in (you pull the brake and then they spring back in) I had this problem, dont know if you get what i mean but if you did hope it helps. chris Quote Link to comment Share on other sites More sharing options...
Barnesy Posted March 21, 2010 Report Share Posted March 21, 2010 You have probably got sticky pistons. You just need to lube the piston and they will be fine. Also your brake pad backings might be worn and could be wobbling on the piston I would of said sticky pistons as well but why not try some fresh oil and make sure they are bled properly, i have run these brakes for years and normaly just a good service sorts things out. Hope this helps dude Quote Link to comment Share on other sites More sharing options...
maundy Posted March 22, 2010 Report Share Posted March 22, 2010 ye maybe if u run loads of tar it wil stick on. try getting brake cleaner from halfords or somewhere and give the rim a blast and start fresh. or take out rear pistons and clean them up. use minrel oil or magura blood to lubracate the piston when it goes back in so u dont flip the seals or damage them.. thats for disc brakes, if you put that on a rim brake it will get contaminated. they wont get contaminated we use brake cleaner in the automotive trade. the one i am on about is not cilicone based and wil dry in no time just aply to rim take off exess tar. ive done this for years and i aint never had a problem. Quote Link to comment Share on other sites More sharing options...
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