MTB help : The rear wheel wont turn freely

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HAZBRO
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MTB help : The rear wheel wont turn freely

Post by HAZBRO » 17 Sep 2012 18:53

After the cyclo cross event on sunday my Bike took a bit of a bashing, the wheels picked up mud like tractor wheels do, but as soon as i got it home I put it upside down a simply tried to turn the wheel but it just won't move freely, i think its the Hydraulic breaks, but i try not to tamper with them and normally after a good run up at cannock the wheels will turn freely regardless of the dirt.

Before the event: when putting the front wheel back on just before the event quite a lot of a watery substance came out of somewhere like a tap possibly near the rear wheel.
Anything that can go wrong, will go wrong.

laurence_cooley
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Post by laurence_cooley » 17 Sep 2012 19:50

If the bike was tilted back or upside down, the fluid was probably water draining out of the frame.

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dweben
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Post by dweben » 17 Sep 2012 20:12

A whole host of things can cause this... ranges from

Buckled rotor
Pistons in the caliper seizing up
Loosening the quick release
Mis alignment of the wheel if it's been out
Mis alignment of the caliper if it's fettled with
Bit of grit gets stuck behind the brake pad
Taking the wheel out and pressing the brake

First thing I usually do is just take the wheel out and reseat/tighten it up. Failing that loosen the caliper and then realign it (loosen caliper, hold brake on so pads line up with rotor, then tighten the caliper up with the brake still held on). Failing that yank you're getting into pushing pistons out and greasing up with copper grease...

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HAZBRO
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Post by HAZBRO » 17 Sep 2012 20:24

Cheers I'll take a good look at it hopefully its nothing serious
Anything that can go wrong, will go wrong.

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HAZBRO
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Post by HAZBRO » 17 Sep 2012 23:21

THE BRAKES WERE HALF ON FOR THE WHOLE OF THE RACE NO WONDER I WAS AT THE BACK ,40 MINS OF THAT

i thought it was a bit tough to pedal through a basic field!

that highlights how imortant bike checks are
Anything that can go wrong, will go wrong.

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Post by jonnyri » 18 Sep 2012 16:06

HAZBRO wrote:THE BRAKES WERE HALF ON FOR THE WHOLE OF THE RACE NO WONDER I WAS AT THE BACK ,40 MINS OF THAT

i thought it was a bit tough to pedal ...Quote]


Happens to me all the time






:wink:

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HAZBRO
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Post by HAZBRO » 18 Sep 2012 18:22

How much does it cost to rebleed the brakes?
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dweben
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Post by dweben » 18 Sep 2012 19:01

Probably about £15 per brake or so.

Before you go shelling out dosh on them have you tried pushing the pistons back and resetting the brakes? Unless they're actually leaking fluid/spongey then it's probably not a bleed that you need.

Ta, Paul

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Post by Dave Cox » 18 Sep 2012 22:34

One lad had his front wheel come out during the race. Fortunately while going up hill not down. Harry you are absolutely right about bike checks

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HAZBRO
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Post by HAZBRO » 19 Sep 2012 21:03

Its not looking good back wheel now moves from left to right
Anything that can go wrong, will go wrong.

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dweben
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Post by dweben » 19 Sep 2012 22:35

Bit hard to diagnose that one beyond the obvious loose QR or dodgy bearings!

If you're not totally sure it's safe to ride or don't feel confident with having a go at the brake calipers just whip the bike into your LBS and ask them if they can see the issue.

Paul

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Between Peaks
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Post by Between Peaks » 19 Sep 2012 23:07

Where do you live Harry? If it's anywhere near the SW Birmingham area I'd recommend calling in to see Ben at Venture Bikes - there's not much he doesn't know about mountain bikes.

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HAZBRO
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Post by HAZBRO » 20 Sep 2012 23:19

Alright ive sorted it 'sort of' i go to the gym on it but im not sure about taking up to cannock for trail run doesnt seem all that safe
Anything that can go wrong, will go wrong.

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dweben
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Post by dweben » 20 Sep 2012 23:55

Harry, your profile says you live in Harbourne. There's a bike shop at the end of the high street there (just past the garage). You can probably ride/push it there in 5 minutes. I've been in there once and the chap was quite helpful/decent. :)

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Post by Dave Cox » 21 Sep 2012 15:50

Many of us can fiddle with our bikes but they are getting more complex and there is a reason why people do proper training and run shops. I am sure a trained cycle mechanic could fix it and reassure you very quickly and for very little money.

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HAZBRO
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Post by HAZBRO » 22 Sep 2012 16:52

Everythings sorted now there is only a tiny bit of play on the back wheel now
so its fine
Anything that can go wrong, will go wrong.

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