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2015 Cervelo S3 Carbon failure?

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2015 Cervelo S3 Carbon failure?

Old 04-20-15, 01:10 AM
  #1  
_ediri
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2015 Cervelo S3 Carbon failure?

Hi all,

i just wanted the opinion of you guys about this failure on my bike. I can not explain myself how this could happend? The bulge is in the seat tube cutout. I did not let the bike fall or anything. Just normal riding (no paves-riding neither).

https://imgur.com/a/J2FCj

Some infos: It is an one month old Cervelo S3 (2015). The fibers you can see on some pictures are from cleaning the area with a micro fiber towel. No rants about Cervelo please!

Curious for your inputs.
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Old 04-20-15, 01:51 AM
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that blows, they do have pretty good customer service.
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Old 04-20-15, 02:06 AM
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Originally Posted by _ediri View Post
Curious for your inputs.
Warranty

This an issue for the shop the sold it to resolve, would be asking them questions, as they are better positioned to answer as they can have access to the bike/be advised by Cervelo.
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Old 04-20-15, 03:05 AM
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Cosmetic from the tire being close to the wheel well. It's fine. My s5 has all kinds of scratches in the wheel well because there's about 7 mm of tire clearance there especially with wide wheels.
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Old 04-20-15, 04:19 AM
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Thanks for the input so far.

Claiming warranty will be the next step, going to see the local dealer this week. Will see what he has to tell.

This is how the affected area should normal look like! A fine and smooth curved surface.



On my bike you can see the bulge and as a result the chipped paint area!

As a engineer myself i am quite curious to know the reason? I am around 81kg so I am still the the Gauß Bell.

The affected area is where the seat tube becomes narrow, because of the rear wheel cutout.

My worst nightmare could be its a design flaw and the shock absorption is disturbed in these are?
Attached Images
File Type: jpg
2014 Cervelo S3 YouTube.jpg (45.2 KB, 227 views)
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Old 04-20-15, 04:28 AM
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I'm thinking about seatpost to cause that. Maybe it needs to be cut shorter.
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Old 04-20-15, 05:27 AM
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Originally Posted by T800CF View Post
I'm thinking about seat post to cause that. Maybe it needs to be cut shorter.
Thanks for this one. Thought the same first but did not think about that the seat post will have this kind of length... Especially if you don't want to cut the post because you are still experimenting with finding proper fit...

Just found this one on the i-net

S5 vwd 2012 seatpost and seat tube bad design -

Slipping seat posts must be a reason for this one. In combination with the seat tube cutout...

I found a picture of a poor guys bike, who actually had a breach(!) of the seat post: https://www.flickr.com/photos/121403...8/13492993264/

Edit: Just for completeness another thread about slipping seat posts https://forums.cervelo.com/forums/p/13893/93596.aspx

Last edited by _ediri; 04-20-15 at 05:31 AM. Reason: missing link
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Old 04-20-15, 06:46 AM
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Nuts, man! That's the worst. I wouldn't have thought of seatpost, but that does seem pretty plausible now that it's been mentioned. I hope you can get it replaced under warranty. If not, carbon repairs are not too expensive and are actually quite effective. Just a PITA.
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Old 04-20-15, 06:47 AM
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Dealer installation may be a problem as well. Cervelo's instructions include a 45 degree cut and proper use of paste. Since its just a month old, I would be leary of what the dealer comes back with.
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Old 04-20-15, 07:15 AM
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Originally Posted by StanSeven View Post
Cervelo's instructions include a 45 degree cut and proper use of paste
That is the right question to ask!

Without starting any discussion about the quality of FLBS, and did not giving the dealer a chance to state their view (cloesed on mondays), these are the points i can not know and i therefore need the help of the local dealer!

i will not unscrew the seat post to check for a proper cut and hopefully the warranty of cervelo will step in! But i guess season is over for this bike! Thinking of the time to send stuff to Canada from Germany.
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Old 04-20-15, 01:02 PM
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I have a 2015 S2 (same frame as the S3) I would pull the seat post out and shine a flashlight down to see if the damage in on the inside of the seat tube too. My shop cut down the seat post before I left the shop (wouldn't go low enough.) If that's not it, could be from impact damage from something getting stuck between the tire and frame.
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Old 05-12-15, 02:36 PM
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Today i get an update from my local bike dealer. Cervelo repaired the frame and is going to send it back next week (was sent to the German Cervelo Branch)
I asked them how they repaired it and did they repainted the chipped area but they could not give me an answer!

Did anybody get an repaired frame back from Cervelo? Should I trust a repaired carbon frame?
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Old 05-12-15, 02:44 PM
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If it's done right, repaired CF is the same as new. Since it was done by the factory, you shouldn't have any worry
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Old 05-13-15, 04:10 AM
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Sounds good! I am quite curious myself how it will look like, especially the chipped paint part!
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Old 06-09-15, 07:26 AM
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Get my bike back. It is not replaced nor repaired just the dent was removed (heated and pressed in shape) and a quick ugly paint applied! I can post pictures if somebody is interested in how Cervelo "fix" stuff!

According to my LBS i get a new frame in October as there where no frames in my size available atm.

So apparently buying a bike in the upper price region will not buy you some kind of descent service...
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Old 06-09-15, 07:34 AM
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If a quick repair followed by a replacement when one is available is not decent service, what is?
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Old 06-09-15, 07:34 AM
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Originally Posted by _ediri View Post
Get my bike back. It is not replaced nor repaired just the dent was removed (heated and pressed in shape) and a quick ugly paint applied! I can post pictures if somebody is interested in how Cervelo "fix" stuff!

According to my LBS i get a new frame in October as there where no frames in my size available atm.

So apparently buying a bike in the upper price region will not buy you some kind of descent service...
Well, I would say that's not *bad* service. They're still going to give you a new frame, though I'm kind of surprised that they couldn't come up with ANY new frame in your size right now? (Probably didn't try hard enough but, again, you're going to likely get a 2016 frame so not too shabby)

I've known a couple guys who had to wait a while on Cannondale & Specialized frames too. For impatient folks it's no fun, but before you know it you'll be on your new frame & this will be a memory.

My focus, now would be on the "cause" for any future beefs with Cervelo.
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Old 06-09-15, 08:27 AM
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Originally Posted by Wilfred Laurier View Post
If a quick repair followed by a replacement when one is available is not decent service, what is?
Agreed. Given that no frame is available, not sure what else they could have done (except to fix the frame but without the promise of a replacement frame).
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Old 06-22-15, 02:52 AM
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Just to clear it: I am not saying that the service from cervelo is bad. But it is, for a company with pricy products, not the best neither!

IMHO it "feels" like the normal customer is just a necessary and they are more into the world of racing, support racing teams (as you can see on their social media accounts).

Will see how the whole thing turns out, when i will get the new frame in fall.
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Old 06-22-15, 03:25 AM
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No doubt. For them to even give it back to you to ride means it is safe to ride. There is huge liability on their part if they give it back to you and the frame fails and you wind up paralyzed or something. That means it is just cosmetic. They are giving you a brand new frame as soon as they have one available. I think you need to quit your whining. (It would be good practice, in my opinion, for them to set aside a certain number of frames specifically for warranty replacement, and obviously that number is not enough because i ran into the same problem a few years ago with them, but still...quit your whining. They're taking care of you)
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Old 06-22-15, 05:27 AM
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Originally Posted by _ediri View Post

On my bike you can see the bulge and as a result the chipped paint area!

As a engineer myself i am quite curious to know the reason? I am around 81kg so I am still the the Gauß Bell.

The affected area is where the seat tube becomes narrow, because of the rear wheel cutout.
The carbon around the cutout is done by hand, it is not moulded that way. This means that there will be some variance. Good QC does not mean no variance, it means acceptable variance is within a given spec.
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Old 06-22-15, 05:53 PM
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They're making you wait because they don't have any availability in the size frame you need. They don't just call the factory and ask them to fire up a whole production line to make one frame for a customer that needs one right now because their manufacturing doesn't work that way.
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Old 06-24-15, 04:40 PM
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Just a heads up.

A teammie of mine had a serious problem with his S3. Something like crank rub... After many complaints they fixed the problem which ultimately was simply to remove the Rotor crank and install Shimano. I mention it because you have a Rotor crank and might experience some problems.
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Old 12-28-15, 04:00 PM
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final update

After nearly six months of silence, I received a new frame from my bike dealer/cervelo!

happy end with mixed feelings - next bike will be local brand.
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Old 12-28-15, 04:23 PM
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I'm curious on why you posted here. There's a very active Cervelo forum where a large share of Cervelo owners watch. Many actively participate as do key Cervelo management.
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