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Help - clicking in rear carbon wheel
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 9:42 am    Post subject: Help - clicking in rear carbon wheel Reply with quote

Guys,
Any of you bike mechanics!?
Need help/advice on a small problem I'm having with my rear wheel. I've already posted a note on the CyclePLus website.

The rear wheel of my racing bike is of the 3-year old Spinergy 4-beam carbon tubular wheels. There are bridges between the beams to help reduce flex.

Basically there is a pronounced clicking noise with every revolution of the wheel. This is continuous and happens whether I'm pedalling or not (ie free-wheeling). It gets louder the more weight on the bike, so when I'm carrying a backpack it really stands out! It's not only off-putting but quite worrying as I've heard these wheels have been known to 'explode' in past races.

Anyway I took to Evans yesterday and they couldn't tell me what the problem was (very disappointing!). They just said they thought it might be the free-wheel/hub.

Any ideas!?!?!

I guess I will have to take the bike to another store in London. ANy recommendatios - Cycle Surgery, Condor, Sigma Sport, etc?

Many thanks
D Sad
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ed_m




Joined: 15 May 2003
Posts: 8127
Location: coventry

PostPosted: Wed Jul 09, 2003 9:58 am    Post subject: Reply with quote

if it happens whilst you're pedalling lightly (i.e. no load through the freewheel.. but making it turn the same speed as the wheel) then it's less likely to be that....

which kind of only leaves structural Shocked
check for excessive movement when you load the wheel in various directions and look for hairline cracks & the like

oh and wear safety goggles in case it shatters Crying or Very sad
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 10:26 am    Post subject: Reply with quote

#@?#! thanks for that, I'm really worried about the race on Sunday now Sad

It's a click that goes with every revolution of wheel and is more emphasised with added weight. There is no sound when I stand by the bike and lift up the rear wheel and spin it. SO maybe its something to do with the flex of the carbon strps (2 per beam with a bridge in the middle). God, I dont know but its annoying!

There is no change to the clicking whether I move from one side to the other, its a constant volume...

Daz
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ed_m




Joined: 15 May 2003
Posts: 8127
Location: coventry

PostPosted: Wed Jul 09, 2003 10:29 am    Post subject: Reply with quote

obviosuly i'm totally unqualified to comment.

put earplugs in for the swim and keep them there ?
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 10:37 am    Post subject: Reply with quote

Laughing Jees, you're a real help mate....!
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ed_m




Joined: 15 May 2003
Posts: 8127
Location: coventry

PostPosted: Wed Jul 09, 2003 10:56 am    Post subject: Reply with quote

hey some of us don't have anythign carbon on our bikes.... not even lookalike stickers
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Spen




Joined: 04 Jul 2003
Posts: 65
Location: London/Kent

PostPosted: Wed Jul 09, 2003 11:32 am    Post subject: Reply with quote

Have you had your wheels serviced?
I use HED Tri Spokes and my bearings where going in the back causing a bit of movement...Could be that.
Take the wheel into a trustworthy bike shop in the area, if you are in kent then Kent Cycles in Maidstone is very good...I use them for everything bike related now
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Cougie




Joined: 21 Jun 2003
Posts: 1900
Location: NW

PostPosted: Wed Jul 09, 2003 12:07 pm    Post subject: Reply with quote

Can you try it on a Turbo Trainer and get a mate to listen to where the sound is coming from ?
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 12:33 pm    Post subject: Reply with quote

Cheers guys.

Yeh will set it up on the turbo trainer this week. But to be honest, if the mechanics at the Cut (Evans, Waterloo) can't place it, then I'm not sure I will. Apparently they tookeverything apart that could be taken apart and gave it clean,grease.

I'll take to another store in next couple of weeks
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 12:36 pm    Post subject: Reply with quote

Just had this response from a guy on cycleplus:

>>In that case Darryl. take the cross beams out and see what happens. If it stops then, put the cross beams back, but with plenty of grease on the threads on the bolts and any surfaces that touch.
regards<<

Sounds like a plan Smile
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Robert




Joined: 15 May 2003
Posts: 9238
Location: Back from outer space

PostPosted: Wed Jul 09, 2003 4:05 pm    Post subject: Reply with quote

If anyone is interested, I'm taking bets on how long it will be before Daz's wheel explodes! Evil or Very Mad

Maybe I should run a poll? Twisted Evil
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Daz




Joined: 15 May 2003
Posts: 11699
Location: Hampton, London

PostPosted: Wed Jul 09, 2003 4:10 pm    Post subject: Reply with quote

You guys fill me with such confidence. Think I'll buy a unicycle and start practising Cool
may come in handy..... Shocked
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thinman220
Guest






PostPosted: Wed Jul 09, 2003 4:30 pm    Post subject: Reply with quote

I bet 5 at 3:1 on that it will explode!
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ed_m




Joined: 15 May 2003
Posts: 8127
Location: coventry

PostPosted: Wed Jul 09, 2003 8:31 pm    Post subject: Reply with quote

balancing on your front wheel and kicking it round with one foot.. whats it called ?

hmmm

a switzerland squeaker i think

thats what you need to learn daz.
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slowpoke rodriguez




Joined: 11 Jun 2003
Posts: 1838
Location: Wales

PostPosted: Thu Jul 10, 2003 8:12 am    Post subject: Reply with quote

I think that's the first interesting thing I've ever heard about Switzerland.
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