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Re: Creackin sound (metalish)

bomboutking — Fri, 22 Jun 2012 06:46:19 GMT

I do have a S3 too and i have also been chasing noises for a bit. Here's what i found:

1.) When riding over bumps or potholes, the chain is slamming on the chainstay. Solved that with a simple clear colored rubber chainstay protector.

2.) I ride carbon aero wheels which require valve extenders. Since the valve hole isn't tight fit, the extenders slap back an forth when the valve hole section is under direct pressure. Easy to find out: take a ruber band, hook it over the valve, go around the nearest spoke and back over the valve. it helps to take a bit a longer rubber band and take it double to make it stronger.

I hope that helps!

Re: Creackin sound (metalish)

RJP Diver — Mon, 18 Jun 2012 23:31:25 GMT

Also check the seat connection to the seatpost. A little carbon paste there might do the trick if that's where the noise is coming from. (Did you check that yet?)

Re: Creackin sound (metalish)

Dex99 — Mon, 18 Jun 2012 22:33:42 GMT

Nope, not the hub. From what i read here there is a topic on "moving seatpost". And the sound comes from that ,i know for sure. The seatpost, no matter how tight it is (not to tight) when i hit a small bumb it moves fwd and backwards making a small click! sound, it is smaller than in the beggining but it is still there. My last hope will be to re lube with Tacx Carbon Composite and check if the sound will go way, if not, Cervelo will have to claim it as warranty.

Re: Creackin sound (metalish)

wilwoods — Mon, 18 Jun 2012 16:41:35 GMT

Could be your rear hub. Mine does the same thing. They loosen quickly especially if new. Take the wheel off, stick an allen key in each side and tighten. It will probably kill the sound

Re: Creackin sound (metalish)

Dex99 — Thu, 14 Jun 2012 20:42:19 GMT

I`m begining to think it`s the seatpost or saddle .Any of you guys know if carbon spokes make noise under tension? From what i read carbon spokes can make noises sometimes. But after reading this i`m inclined to think it`s the seatpost.

~~The wheels (and spokes) under go load cycling for every revolution (each part of the wheel experiences a load cycle as it passes into and out of the Load Affected Zone) at the bottom of the wheel), regardless of whether you are seated or standing, pedaling or not pedaling. If the noise happens only when seated and pedaling, a more likely source of the noise is the saddle. Saddle rails can creak where they are attached to the saddle shell, and seatpost cradles and clamps can creak when the saddle is rocked under pedaling motions. If the noise goes away as soon as you stand up or stop pedaling, I'd check there first.~~

Re: Creackin sound (metalish)

RJP Diver — Wed, 13 Jun 2012 13:25:55 GMT

Check where the seatpost attaches to the rails of the saddle. Saddles "creak" is very common.

Re: Creackin sound (metalish)

Dex99 — Wed, 13 Jun 2012 12:29:20 GMT

Tomorow i will take the bike down to the bike shop and i hope the creack will go away. Im leaning towards the seatpost too because yesterday i got of the bike and pushed the saddle in, and there it was - that ”lovely” sound. I read a couple of posts here and alot of people are dealing or dealt with this problem too. Very anoying.

Re: Creackin sound (metalish)

racewatcher — Wed, 13 Jun 2012 12:16:26 GMT

The seatpost on my 2010 S2 was the source of a lot of creaking noises. It took several trips to the bike shop to find it and fix it, but thankfully, all is good now. It was at the seatpost bolt area, and some carbon paste and carefull bolt torque did the trick.

Re: Creackin sound (metalish)

Dex99 — Wed, 13 Jun 2012 10:14:12 GMT

Thanks!

Re: Creackin sound (metalish)

eddymerckx3 — Wed, 13 Jun 2012 02:15:36 GMT

There are LOTS of threads on this forum cover the issues of creaking and cracking noises...type those two words into the the search engine and you will find lots of great info.

Here is a recent example.... http://forums.cervelo.com/forums/p/10183/70284.aspx#70284

EM3

Re: Creackin sound (metalish)

Dex99 — Tue, 12 Jun 2012 22:22:47 GMT

When first i heard it was under hard pedaling but on the saddle ( the first 2-3 pedals). The noise vanished a bit after playing around with the seatpost bolt. And it appears when on bumby roads, when hitting a bumb or small hole (not everytime). It drives me mad! Argh..carbon!

Re: Creackin sound (metalish)

chuckb84 — Tue, 12 Jun 2012 21:05:40 GMT

I don't know if this is the same, but my R5 with Rotor cranks started to develop a creaking sound from the bottom bracket. During the Air Force Classic ride this weekend, the noise got louder and louder and I almost abandoned the ride, but was ultimately able to finish. Took the bike to LBS (Freshbikes) and they said that my bike was one of several recently received from Cervelo with the bottom bracket cupset over preloaded, which damaged the drive side bearing. Over time, this develops lateral play and results in the noise. The noise started out as a sort of creaking, especially noticeable under hard pedaling, but it became a constant noise, sort of sounding like a bad case of cross chaining, but independent of any particular gear. Don't know how common this is, but thought I'd pass it along...

Re: Creackin sound (metalish)

Dex99 — Tue, 12 Jun 2012 21:03:47 GMT

Yes, i will do that. Thanks for the advice.

On my previous roadie, i had noises coming from the pedals. But in this case when i'm pedaling out of the saddle i don't hear anything. If to say something is wrong with the pedals, this noise should appear when i'm putting tension on them.

Re: Creackin sound (metalish)

DoesThisBikeMakeMyButtLookBig — Tue, 12 Jun 2012 20:47:36 GMT

Try adjusting the tension on your pedals/ lubricate them. I have had creak with my S2 and S5. Pedals were the culprit in both.

Re: Creackin sound (metalish)

Dex99 — Tue, 12 Jun 2012 20:09:02 GMT

Cables are integrated, i dont know if they are moving around in there...i hope not.