juicy 5`s rubbing

robintawmb · June 2007

After being off the bike for a shameful 6 wks, managed to get out yesterday for 1 1/2 hrs and found it like pedalling through dry sand. It could have been my lardy frame - but it felt like the brake(s) were seized on. Back home the rear brake was indeed rubbing to a degree and no matter how i fettled/faffed about, I couldnt get a squeak/rub free setup. I tried pushing the calipers back - but 1st application made no difference. Could this be due to a lack of use which will free off with time or is there a fault (the brakes are 8 months old with a decent few mm left on pads and the rotors seem true to my eye as well).

Maybe disc brakes will rub to some degree ? I`ve never ridden another disc-equiped bike - please help !

My upgraded Hardrock

Unknown · June 2007

It is true that it is hard to avoid a tiny bit of rub - but it shouldn't feel like pedalling through dry sand!

I have 5's too - and have had a few probs with them.

Is there any sign of fluid leaking from the lever? I've had this a couple fo times with my front brake.

If fluid has leaked out then air has got in - which will give you problems.

Try bleeding them - if you have the kit. If not pop them into your LBS who, if they're any good, should sort it quickly.

I've been a little dissapointed with the Juicy 5s. When working they're great brakes but they are not exactly 'fit and forget'.

Updated pics:
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Bianchi Via Nirone
Kona Lava Dome - in progress

Satchmo245 · June 2007

They should not rub really. When you say you have tried pushing them back do you mean you have stuck a flat head screwdriver or similar in between the pads and then twisted?? If not then that may fix it.

If not then with one pad touching the rotor is the other pad further away from the rotor than usual?? It may be that the caliper needs resetting which is easy enough to do.

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Unknown · June 2007

That's weird - I read your post once and as I wrote my reply I was sure you said you had Juicy 5s.

Reading your post again you don't say what brakes you have.

Am I going mad?

What brakes are they?

EDIT - I am going mad - it's in the title - doh!
Maybe time for bed [:I]?

Updated pics:
Giant Anthem
Bianchi Via Nirone
Kona Lava Dome - in progress

Unknown · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Satchmo245

They should not rub really. When you say you have tried pushing them back do you mean you have stuck a flat head screwdriver or similar in between the pads and then twisted?? If not then that may fix it.

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<hr height="1" noshade id="quote"></blockquote id="quote">

It might well - but not if there's air in them.
Give it a try though.

Also, as Satchmo says, ensure they are centered.

Updated pics:
Giant Anthem
Bianchi Via Nirone
Kona Lava Dome - in progress

Satchmo245 · June 2007

Hehe, BigAl, the topic title is Juicy 5's rubbing. You're not going mad, well not on that basis anyway [;)]

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Unknown · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Satchmo245

Hehe, BigAl, the topic title is Juicy 5's rubbing. You're not going mad, well not on that basis anyway [;)]

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[:I][:I] - Hehe just noticed that [:I][:I]
Edited my post.

I have blonde hair too!

Updated pics:
Giant Anthem
Bianchi Via Nirone
Kona Lava Dome - in progress

Unknown · June 2007

sounds like the pistons have gone sticky. give the calipers a clean and around the pistons work them in and out a bit. put pads back in the same place they came from wheels back on sorted.

nick
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Unknown · June 2007

You might well be right Nick.

But as a Juicy 5 owner I'd wager they need bleeding.

Updated pics:
Giant Anthem
Bianchi Via Nirone
Kona Lava Dome - no more :-(

Unknown · June 2007

my experiance of discbrakes is that generally a bleed is the last thing brakes need.

nick
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Unknown · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by nicklouse

my experiance of discbrakes is that generally a bleed is the last thing brakes need.

nick
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I bow to your greater experience (really).

But that's what my 5s needed

Updated pics:
Giant Anthem
Bianchi Via Nirone
Kona Lava Dome - no more :-(

Unknown · June 2007

i dont disagree. but i love the way some shops charge for a bleed when it is not needed. the only time a bleed is really needed is when the lever feels spongy when it felt fine before.

releasing presure from the system is not bleeding. De gassing could almost be classed as a half bleed. for when the levers dont feel just so but not squishy. re the fluid from the resi cap on your fives ok i have not seen it but some fluid will leak from the cap on first uses it is just part of the process. unfortunatly i can not prove deny disprove or prove what was needed. All i can do is go from what i have come from.

here is a funny one i am trying to solve. rear brake Oro 24 lever needs pushing away from the bars! two brakes same fault. one was lubed up and put back together bled and now is fine. second one not done anything yet as i am looking for some auto brake grease.

nick
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robintawmb · June 2007

Thanks for the advice guys. I think it could be sticking calipers and try a clean. Whats the best way to clean the calipers ? I'm obviously wary of potential pad contamination.

My upgraded Hardrock

Unknown · June 2007

remove pads first

there are some good guides on srams webby.

nick
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robintawmb · June 2007

Ta. I`d meant what to clean calipers with after removing pads !
Will chk out SRAM though.

My upgraded Hardrock

StefanH · June 2007

...and nobody mentioned the possibility of requiring shims to adjust the caliper position relative to the rotor? This was the problem on my rockhopper this weekend. The bike came supplied shim-less at the front, causing the caliper to be slightly off-center. It worked fine when the bike was new, but caused rubbing after (I think) nearly 3 months.

I did have a slight warp to the rear rotor, which caused a slight squeak once every revolution. Couldn't actually feel it rubbing, as such, but it was annoying. Took wheel off, found the point on the rotor that was bent slightly (less than 1mm) away from the wheel and gave it a good nudge with my knee (do not do this whilst wearing shorts! Jeans only). Rotor is now wobble free and my wheels glide along beautifully once again

juicy 5`s rubbing

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