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  1. #1
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    can this be fixed? Snapped 4130 chainstay

    I'm sad to say that my beloved 10yr old Cotic Soul bit the dust last night. JRA, but after just riding over 3 large scary rock gardens.

    can this be fixed? Snapped 4130 chainstay-img_3077_zpsdf45ce24.jpg
    can this be fixed? Snapped 4130 chainstay-img_3078_zps18e6c38e.jpg

    As far as I'm aware, the material is 4130. Break was relatively clean, but with a small part bent inwards slightly.

    Cosmetically I'm not too fussed, I just need to know if it can be fixed, who would be able to fix it (frame builder or my buddy who builds motorbikes?) and if it would be strong enough to trust. I was lucky in that I only had a mile or so walk to the end of the trail then rolled down a fireroad to the car, but if it had happened earlier it would have been an hour or two's walk out.

    thanks!

  2. #2
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    You probably want to just go ahead and replace the chainstay. Any kind of patch/sleeve job is just going to fail again. Expect to pay a framebuilder ~$100 if you don't need a new paintjob. If you want a repaint, prices are going to be all over the map but it'll add a significant amount. Your motorbike buddy can *probably* do it too but you may run into problems (chainring or tire clearance, frame alignment, etc) that he/she will have trouble with moreso than a bicycle framebuilder.

    -Walt
    Waltworks Custom Bicycles
    Park City, UT USA
    www.waltworks.com
    waltworks.blogspot.com

  3. #3
    Who turned out the lights
    Reputation: Francis Buxton's Avatar
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    Looks like it's been cracked for a little while and you've been riding on borrowed time.

  4. #4
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    Yes, that's a good point. All that rust in the crack means some of it cracked a while ago.

    -Walt
    Waltworks Custom Bicycles
    Park City, UT USA
    www.waltworks.com
    waltworks.blogspot.com

  5. #5
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    Thanks Walt and Francis, much appreciated. It was professionally stripped, rust treated and powdercoated by Spectrum in Colorado about a year ago, so any crack must have either started since then or not have been visible when that was done. It's not beyond the realms of possibility that it cracked recently, I've been riding pretty hard this year and this area is pretty tough on bikes.

    I can see the point in replacing the whole chainstay, I really want this to last both for practical and nostalgic reasons. I'll check to see what the professional options are locally. I'd rather not have to repaint the whole frame, that cost me nearly $300 last time and I just don't have the spare coin to do that in addition to the repairs. Given that it's mostly hidden by the chainstay wrap, would primer then automotive paint be sufficient/ hard enough?

  6. #6
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    If it were my bike, I'd get the stay replaced, then rattlecan it as well as possible, wrap it up, and call it good. Will it rust after a while? Yes. When that starts getting bad (could be years depending on where you live) you can have it stripped and repainted.

    Definitely find a local option if at all possible, shipping bike frames is expensive and sucky (I know this all too well after doing it 500 times...)

    It's worth checking the rest of the frame VERY carefully for any other damage, obviously. No point in fixing the chainstay if the head tube is about to fall off or something.

    -Walt
    Waltworks Custom Bicycles
    Park City, UT USA
    www.waltworks.com
    waltworks.blogspot.com

  7. #7
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    thanks Walt, that sounds like a plan! I found a place in Virginia (Eagle One) which specialises in frame repairs and has a price of $100 on a chainstay replacement. Shipping should hopefully be less than the $50 each way it cost me to have it powdercoated in Colorado. Just waiting to hear back from them. I'll keep checking out other options too, although local options are likely to be thin on the ground as I live in central PA.

    Good tip on checking the frame over. It has a couple of small dings that the powdercoaters picked up on, but I'll go over the rest of the bike carefully too. It's a well loved bike without a doubt

  8. #8
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    Where are you located? There has got to be a local builder that might handle it without you incurring delivery charges.

  9. #9
    Stokeless Asshat
    Reputation: jeff's Avatar
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    Bilenky Cycle Works

    In Philly. You can't go wrong with these guys.
    Zip ties? Not on my bike!

    Want:
    650B rims or wheel set. 80's vintage 32 or 36 x 135mm

  10. #10
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    I'll +1 that. The Bilenky fam can fix it for you and they are great folks.

    -Walt
    Waltworks Custom Bicycles
    Park City, UT USA
    www.waltworks.com
    waltworks.blogspot.com

  11. #11
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    If you are north central PA, both these guys have good reputations:

    HUBCAP Custom Bicycle Frames | Hubcap Cycles

    Oswald Cycle Works...custom bicycle frames handmade by Tom Oswald

    Not to steer you away from Bilenky in the least, great group of folks down in Philly.

  12. #12
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    [QUOTE=mattthemuppet;10765905]I'll keep checking out other options too, although local options are likely to be thin on the ground as I live in central PA.
    /QUOTE]


    Bilenky is great.

    There is also Dreesens:

    Dreesens Bicycles | Steel bicycles by Peter Dreesens

    There's a few in Baltimore depending on where in Central Pa you are.

    I could do it too.

  13. #13
    Randomhead
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    as someone that lives withing five miles of the geographic center of Pennsylvania, I always wonder where central PA really is. People that live as far west of us as Harrisburg is east of us think they live in western Pennsylvania.

    It's really hard to tell from the pic, is that bike welded?

  14. #14
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    thanks for all the great tips, it's much appreciated! I'm in State College, purportedly the home of Hubcap Cycles, although it's hard to know from his website. I've actually seen one of his bikes in my lbs (a ti frame with a pink leopard spot paint job) which was quite memorable! I'll give him a call and see if he can fit me in, as that would be the simplest option.

    If not I'll hit up the others - Bilenky was also recommended by the bike shop too. Although I obviously want to get this fixed as soon as I can, I do have the lovely distraction of a 27.5in Giant full sus of some description (Trance?) courtesy of the Bicycle Shop Should be interesting going from a 26er steel hardtail to a 27.5er full sus!

    unterhausen - as far as I know it's TIG welded in Taiwan, prepped and painted in the UK (where I lived when I bought it). It was one of, if not the first long travel adjusted hardtails in the UK and it still rides amazingly all these years later.

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