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Getting Carbon frame repaired?! Broken rear wheel stay.

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  • August 25, 2019 at 9:06 pm #30053
    Organon

    On a scale of one to completely shagged, how bad is this crack in my frame? The top of the rear left wheel stay is soft with carbon sticking out and the rear wheel moves offline dragging against the brakes. It seems broken through. I’ve never had a broken carbon frame before and immediately looked at whether repairs can be done. Apparently so, but does anyone have an idea of what this would cost to repair?

    I have identified atlantic-boulevard.co.uk in Bury and targetcomposites.co.uk in Cheshire as possible CF specialists. Does anyone know of other good carbon specialists in or around Manchester?

    What are your experiences of carbon repairs? Are they costly, can you trust them or was it the deathknell for your bike? I am imaging the weeks ahead without my bike and have to stop myself immediately looking online for a replacement.

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  • August 26, 2019 at 8:35 pm #948985
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    jaysa

    If that lets go descending a

    If that lets go descending a bumpy hill or in a left bend with oncoming, you could be history.

    Please get advice from a specialist.

    Manufacturers aren’t keen on carbon frames being used on a trainer, I’d guess because it stresses the seat stays. See https://road.cc/content/feature/216681-it-okay-use-your-bike-turbo-trainer

    August 26, 2019 at 8:23 pm #948983
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    Organon

    Woah, guys aren’t you being a

    Woah, guys aren’t you being a bit hasty? I don’t know that it will cost that much. As far as I am concerned the frame is the bike, some part used wheels and cassette are good back up for spares but I am not going to be striping and rebuilding everything on a new frame. I’ve done quite a lot over the years but I would never expect to build my own bike back up from a new frame and expect it to all run perfectly with old components. I didn’t ride it very far until I found the damage. 

    I… err… just wanted a bit of hope. I’ll report back once I’ve got some estimates.

    August 26, 2019 at 7:44 pm #948981
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    kil0ran

    I’d bin it and sell the parts

    I’d bin it and sell the parts, or bin it, strip it, and find  a new carbon frame (PlanetX currently have the Pro Carbon for £400, or the team-issue Holdsworth Super Pro for £500). That way you get to build your bike up, don’t have to wait for a repair, and it’s brand-new with a guarantee. Vs what, £3-400 for a repair where you’re without your bike for a while.

    August 26, 2019 at 7:16 pm #948979
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    Xenophon2

    Boombang wrote:

    Boombang wrote:
    That sounds a seriously soft way to break a frame. No way would I trust that frame even after a repair. Unsure what Canyon’s viewpoint on turbo trainers is but it could be that usage that led to the crack.

    +1.  I’m not a carbon specialist but if it broke after what the OP described and which doesn’t sound like a massive hit then for me personally the frame would be a goner, I’d never be at ease on it again.  You rode it after the break so there’s no telling what that extra load did to the other stay (if indeed it did anything). Obviously I’m not the one who’ll be paying for a replacement but there’s little profit in throwing good money after bad money. 

    August 26, 2019 at 6:45 pm #948977
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    Boombang

    That sounds a seriously soft
    That sounds a seriously soft way to break a frame. No way would I trust that frame even after a repair.

    Unsure what Canyon’s viewpoint on turbo trainers is but it could be that usage that led to the crack.

    August 26, 2019 at 5:30 pm #948975
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    wycombewheeler

    I reckon £300 to £400, but

    I reckon £300 to £400, but don’t take my word for it, send the same photo to carbon bike repair in surrey, (or someone more local to you) and let them give you an estimate.

    August 26, 2019 at 5:12 pm #948973
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    Organon
    Xenophon2 wrote:
    I’ve seen grubbier frames, it’s what tends to happen if you ride every day.  It’s repairable by a specialist company but you need to consider if it’s going to be worth it taking into account the age of the bike and its general condition.  How did it break?  Did you respect the weight limits?  You may have overloaded the other stay and caused internal delamination, without ultrasound/X-ray it won’t be possible to tell.  That costs $$.  Or the previous owner may have crashed it and there may be other weak spots, there’s no telling.  One of the reasons why I’d never ever purchase a used carbon frame.

    Okay, full rundown: I’ve had it since april 18, the previous owner said they only used it on a trainer for a few thousand mile, and I believe them, it was virtually brand new when I got it. It is therefore no more then two years and all outdoors damage is due to me. I had a slow puncture and stopped to pump it up whilst leaning on a lamppost – bike vertical; when satisfied with the pressure I swung the back wheel down, but dropped it a bit too much and it made a loud noise. I wasn’t too worried as the rear cage bouncing up and down can often make splinking noises, eg. when going over a put hole. However the rear wheel started to rub on the brakes and I found the crack. 

    As for the frame, it isn’t otherwise worn, or excessively dirty. I did spray it with a reflective coating last winter (the white bits) and that is a bit of a dirt magnet. I do ride a lot and the brake arches look extra muddy because I was trying to clean the frame for these very pics. 

    It has never been crashed, just this freak accident/lack of care taken on my part.

    August 26, 2019 at 4:53 pm #948971
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    Xenophon2

    I’ve seen grubbier frames, it

    I’ve seen grubbier frames, it’s what tends to happen if you ride every day.  It’s repairable by a specialist company but you need to consider if it’s going to be worth it taking into account the age of the bike and its general condition.  How did it break?  Did you respect the weight limits?  You may have overloaded the other stay and caused internal delamination, without ultrasound/X-ray it won’t be possible to tell.  That costs $$.  Or the previous owner may have crashed it and there may be other weak spots, there’s no telling.  One of the reasons why I’d never ever purchase a used carbon frame.

    August 26, 2019 at 6:25 am #948969
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    brooksby
    Pilot Pete wrote:
    Did it crack under the weight of the dirt? 

      

    August 25, 2019 at 10:11 pm #948967
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    Pilot Pete

    Did it crack under the weight

    Did it crack under the weight of the dirt?   sad

    Looks repairable to me…

    August 25, 2019 at 9:30 pm #948965
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    Organon
    DoctorFish wrote:
    Have you contacted canyon to enquire about a replacement frame?  When the frame of my words specialized bike cracked on the head tube (aluminium) they replaced the bike, which was 10 years old

    I bought it on ebay, nearly new, 18 months ago. It wouldn’t be under any guarantee. I’ve done about 11.5 thousand KM on it since.

    August 25, 2019 at 9:19 pm #948963
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    DoctorFish

    Have you contacted canyon to

    Have you contacted canyon to enquire about a replacement frame?  When the frame of my words specialized bike cracked on the head tube (aluminium) they replaced the bike, which was 10 years old

     

    August 25, 2019 at 9:09 pm #948961
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    Organon

    Pic. 3 (the white is some

    Pic. 3 

    August 25, 2019 at 9:07 pm #948959
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    Organon

    Pic 2:

    Pic 2:

    August 25, 2019 at 9:07 pm #948957
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    Organon

    Pictures:

    Pictures:

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