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Creaking Carbon?(7 posts)

Creaking Carbon?jallen
Nov 5, 2002 8:47 AM
I've heard some people talk about carbon frames that develop a mystery creaking. Is this true? Does anyone have any experience with this? I'm about to buy a C40 and I'm wondering if this is something that will drive me more nuts than I already am.
I'm hearing something...VertAddict
Nov 5, 2002 9:02 AM
When I hold up my Trek 5500 by the top tube and let the front column rotate freely, I definitely hear a creaking sound. I was going to ask the shop where I bought it about that, hadn't gotten around to it yet.

I've never noticed it while riding, however, so it's nothing that's been a source of aggravation.

I'd be very curious if anyone knows what causes the creaking.
I know...biknben
Nov 5, 2002 10:22 AM
It's the cable ends rubbing inside the cable guide braze-ons. As your bars rotate the position of the cables change. The ends of the cable will move inside the braze-on and may creak. This has happened to me. I shot of any lube will stop it. It comes back from time to time.
common cable guide braze-on noise on many framesTig
Nov 5, 2002 6:18 PM
The standard steel cable ends make noise after a while inside the braze-ons, and I've found that lubrication quiets it for only a little while. The cheapie plastic cable ends don't make any noise.
not common...C-40
Nov 5, 2002 9:13 AM
I've been riding a C-40 for the last three seasons. Never experienced any noise from the frame. I can't imagine how this could occur. If one of the glued joints failed, a creaking noise would be the least of your worries.
I'm with C-40 on this oneB2
Nov 5, 2002 10:39 AM
If the carbon was creaking I believe it would mean some kind of failure (at one of the joints).

One thing I've found time and again is that it can really be a crap shoot trying to find the noise by listening to where it's coming from.... Probably not the frame. It must be the BB :-).

Bryan
Its a liemoneyman
Nov 5, 2002 9:53 AM
The frames don't creak. The hub on my rear wheel (attached to ym Trek 5500) creaked when it ran out of lube inside, but a coating of Phil Wood's Tenacious Oil solved that. Bottom brackets can creak, as well as pedals, headsets, loose handlebars, etc. But unless the frame is cracked, it ain't gonna creak.

I believe that this rumour may have been started as part of a conspiracy by the Russian Ti industry.

$$