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  1. #1
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    Frame defect?

    We went on vacation for a week and did some riding. No spills or anything that I can think that would cause the holes in the frame.
    Attached Thumbnails Attached Thumbnails Frame defect?-image1.jpg  


  2. #2
    Elitest thrill junkie
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    How did you transport the bike during vacation?
    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  3. #3
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    Looks like it's just the paint, perhaps what it would look like if you focused the sun on it with a magnifying glass. I kinda doubt that's what happened, but that's what it looks like.
    Do the math.

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    The bikes were transported on a rack and was fine when we got there.

    I noticed it after a ride and couldn't figure out what happened. My best guess was stress on the frame from riding.

    Someone else has suggested its from the frame being contaminated during the powder coating process, bubbles formed and I guess then popped. Seems to make sense.

  5. #5
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    That doesn't look like powder coating to me. No idea what "stress on the frame" means. It doesn't look like earned scars, so you may want to get out and ride the bike on more difficult trails.
    The suspension of your bike sucks if it's different than mine. Really. It sucks. Big time.

  6. #6
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    Is this a new bike? The damage is only to the coating, not structural. To me, that looks either intentionally done by someone, or something was rubbing on the frame somehow. The pattern of the two areas is almost identical.

  7. #7
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    Quote Originally Posted by mtb.bc View Post
    I noticed it after a ride and couldn't figure out what happened. My best guess was stress on the frame from riding.
    I would place a big 'Negative' on that assumption.
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  8. #8
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    Those are definitely bite marks from the chupacabra. You're lucky to be alive.
    I would advise not taking my advice.

  9. #9
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    Quote Originally Posted by mtb.bc View Post
    The bikes were transported on a rack and was fine when we got there.

    I noticed it after a ride and couldn't figure out what happened. My best guess was stress on the frame from riding.
    It doesn't look like damage from stress on the frame. There's no evidence of cracking or stretching or anything that would indicate stress. It looks more like impact damage from a mechanical part, as there are multiple sets of holes equally spaced.

    Quote Originally Posted by mtb.bc View Post
    Someone else has suggested its from the frame being contaminated during the powder coating process, bubbles formed and I guess then popped. Seems to make sense.
    Could be, I don't have the expertise to say. Is it possible those marks were there before, but you just hadn't noticed them? Either way, probably worth a call to whomever you bought it from.

  10. #10
    No Clue Crew
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    Good news is, looks like you'll have an easy time peeling that paint. And who doesn't like a raw frame?
    Just like a raindrop, I was born to fall.

  11. #11
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    Quote Originally Posted by watermonkey View Post
    Those are definitely bite marks from the chupacabra. You're lucky to be alive.
    Agreed, the dentation is consistent with the dentition of an adolescent chupacabra. I know these things, I've been to a dentist.
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  12. #12
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    A few wraps of black electrical tape and you'll be good to go!

    My GF scratched up her new rims on the 2nd rocky ride for her new bike and was complaining about it. So I grabbed a sharpie marker and "fixed" the scratches.

    It's a mountain bike. It's going to get some love marks one way or another. Either accept them as part of the process or cover them with tape or a strategically placed sticker.
    Safe riding,

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  13. #13
    Meatbomb
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    Where are these located on the frame? Could be rock chips.

  14. #14
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    Looks like the NDS seat tube. Zoom in. Looks eerily like the paint was melted and bubbled in those spots. Someone above mentioned heat or sunlight focused on those spots and that's exactly what it looks like to me.

    I'm not, however, a metallurgist or paint expert. Or sunlight expert. I don't even work at Home Depot.
    Just like a raindrop, I was born to fall.

  15. #15
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    If it really bothers you take it back to the LBS and have them open a warranty claim with Kona.

  16. #16
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    You mentioned multiple bikes on the bike rack. Did the other bike have platform pedals with pins? Those holes, spaced the way they are, look like the pedal rash scars on my shin from impacts with platforms. I think the other bike bit your bike at some point.
    I would advise not taking my advice.

  17. #17
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    I'd think it has something to do with high temperature+sharp pressure. But I also wouldn't worry much.

  18. #18
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    Those are odd marks. Both sets seem equally spaced and the perimeter of each divot looks like the paint melted. Pedal scars (flats with pins) from the other bikes on the rack is my best guess, but that doesn't explain the "melting." Could one of the pedals been near an exhaust pipe. Good news is black covers easy.
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  19. #19
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    Good job!

    Report it / share it with the manufacturer.

    My wife's bike had the clear coat blistering up a few years ago. It was a 2012, the clear coat start bubbling up / blistering up in summer 2016. No biggie. It was a painted, carbon fiber frame. After the clear coat blistered, it would start to flake off.

    I called and emailed photos to the manufacturer--I wanted to know if I could use nail polish or another clear coat to protect the frame. The manufacturer warrantied the frame with a new 2016 frame. Which was great....except the new frame was boost. Ah well, an excuse to upgrade wheels.

  20. #20
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    I am more curious than anything as to what caused the mini crop circles. Iím 99.9% sure sure this isnít something caused by rubbing (paint defect makes sense). We use a North Shore Rack to transport our bikes.

  21. #21
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    Quote Originally Posted by mtb.bc View Post
    I am more curious than anything as to what caused the mini crop circles. Iím 99.9% sure sure this isnít something caused by rubbing (paint defect makes sense). We use a North Shore Rack to transport our bikes.
    Interesting. Where exactly on the bike is it as well? Looks like the seat tube, non drive side.

    What were the bikes?
    Looks to me like the sun was concentrated on those areas and melted the paint.

    Perhaps sunlight focused off of a mirror, rear window, another bicycles reflector (if they have them) or something of the like.

    A reflector, if it was on a bike, could easily have concentrated the sun into those areas and cause it to melt.
    The way that rack holds the bikes the front wheels are turned, which very easily then would have been right on that area....

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