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Crack or cut in carbon - should I worry

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  • 26-09-2018 11:08pm
    #1
    jamesd
    Registered Users Posts: 3,438 ✭✭✭


    Cleaning the bike this evening and saw this on the rear, it's where the rear bolt goes for the rear brake caliper (disc brakes bike).

    Should I get this looked at or what do you think - carbon bike.


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    #2
    Alek
    Registered Users Posts: 4,520 ✭✭✭Alek


    To me, the caliper bolt has been overtightened, and the mounting point was squeezed to the point of failure... not good news.


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    #3
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    I have not tightened it since I got it but I suspect if it was over tight then with use the crack occurred and got worse.


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    #4
    carltonleon
    Registered Users Posts: 1,178 ✭✭✭carltonleon


    Doesn't look good alright.


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    #5
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,590 CMod ✭✭✭✭magicbastarder


    Interesting that what looks like the paint layer seems sliced rather than just cracked?


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    #6
    Alek
    Registered Users Posts: 4,520 ✭✭✭Alek


    Interesting that what looks like the paint layer seems sliced rather than just cracked?

    I have a doubt about it too, but considering the crack underneath, it looks more "exploded" than sliced ....


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    #7
    BrokenArrows
    Registered Users Posts: 7,498 ✭✭✭BrokenArrows


    But the red is on the inside of the crack looking like it was there before it was painted.


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    #8
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    Have 2 year warranty on the frame that was up last week - I have mailed the company with the pics just to see what they think.
    One thing is I have the bike specified under my house insurance for all risks at its cost price.


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    #9
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,590 CMod ✭✭✭✭magicbastarder


    That's a normal mounting of the brake assembly? I.e. under braking, is the force pushing into or pulling away from the frame?


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    #10
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    magicbastarder wrote: »
    That's a normal mounting of the brake assembly? I.e. under braking, is the force pushing into or pulling away from the frame?

    Here is a pic from online - shows where the brake is bolted on.


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    #11
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,590 CMod ✭✭✭✭magicbastarder


    Looks like it'd be pulling away from the frame so, i.e. splitting the crack more open under braking?


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    #12
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    I wonder should I just go through the home insurance with zurich and see how that works out - I wonder what do they need to mark a bike as a write off?


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    #13
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,590 CMod ✭✭✭✭magicbastarder


    Check your insurance policy. Bikes may specifically only be insured for theft from the house. The insurance company would probably - understandably - argue the damage happened outside the house. Are you specifically paying extra for the bike?


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    #14
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    magicbastarder wrote: »
    Check your insurance policy. Bikes may specifically only be insured for theft from the house. The insurance company would probably - understandably - argue the damage happened outside the house. Are you specifically paying extra for the bike?

    Yes all risks for €200 extra a year on the policy, the value of the bike is specified on the policy.


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    #15
    ford2600
    Closed Accounts Posts: 4,457 ✭✭✭ford2600


    jamesd wrote: »
    Yes all risks for €200 extra a year on the policy, the value of the bike is specified on the policy.

    What is rrp of frame, that is all will be covered I would think. Rest of bike isn't damaged I take it?

    What is excess? What effect will it have on your insurance next year and for next few years?

    Eyes wide open making that claim


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    #16
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    ford2600 wrote: »
    What is rrp of frame, that is all will be covered I would think. Rest of bike isn't damaged I take it?

    What is excess? What effect will it have on your insurance next year and for next few years?

    Eyes wide open making that claim

    I think the frame on its own is €2500, I'll have to check the policy and see now about excess and how much roughly the policy will rise on me.

    Rest of bike is perfect.


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    #17
    ford2600
    Closed Accounts Posts: 4,457 ✭✭✭ford2600


    jamesd wrote: »
    Have 2 year warranty on the frame that was up last week - I have mailed the company with the pics just to see what they think.

    2 years for a high value item like that is crap. They might honour it.

    Post on consumer forum but you'd have an argument under Sale of Goods Act that it was not fit for purpose.

    If it was joint between tubes they could argue you missued/abused bike, but that damage (if it is damage) could only be as a result of a design and/or manufacturing defect.

    Try the carrot first before telling them about the stick


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    #18
    Wishbone Ash
    Registered Users Posts: 24,995 ✭✭✭✭Wishbone Ash


    Are rear discs normally mounted like that?


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    #19
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    Wishbone Ash wrote: »
    Are rear discs normally mounted like that?

    Yes that's the norm on them all.


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    #20
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    Was chatting a club mate just now that crashed in a sportive last year and broke the rear stays on his bike, claimed off insurance as he had it specified too and got a full new bike.
    His bike was fully broke at the stays though where mine if not through.


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    #21
    coastwatch
    Registered Users Posts: 908 ✭✭✭coastwatch


    It doesn't look that bad or look like it's a risk of failing to me, still plenty of material under the bolt head. At worst , it's a repair for peace of mind.


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    #22
    jamesd
    Registered Users Posts: 3,438 ✭✭✭jamesd


    coastwatch wrote: »
    It doesn't look that bad or look like it's a risk of failing to me, still plenty of material under the bolt head. At worst , it's a repair for peace of mind.

    Will see what canyon say, Plus keep an eye on it now and compare to the photos.


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