Can this carbon be re-repaired?

justyn_c_uk
justyn_c_uk Posts: 126
edited July 2013 in Workshop
My Pedalforce ZX3 frame developed some cracks around the seatstay a couple of years ago, these were repaired and since then I have been very careful with the frame (never hanging it, seatpost tightened using torque wrench, even lost some weight). Then this morning I noticed the cracks have returned and after a short ride have spread.

So the question is will repairing again just postpone the inevitable or is it a write off now? Any advice, anyone had similar problems on a frame? (click on the image to go to a flickr gallery with a few more shots)

9207964908_1a98e58a32_c.jpg

Regards,

Justyn
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Comments

  • Bar Shaker
    Bar Shaker Posts: 2,313
    It can be repaired easily.

    Align it as best you can, sand the tube to a matt finish and then wrap a resin soaked carbon mat bandage around the cracked tube.

    I suspect it was always too thin for the loads it took.
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  • crankycrank
    crankycrank Posts: 1,830
    Have you tried contacting the place that did the original repair? They may offer to fix it or it could be they didn't do a proper job. A good CF repair shop should be able to do a durable fix and would know if it needs reinforcement. Make sure you bring the seatpost with you as it may be slightly undersized, too short, misshaped, etc.

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