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Thread: Replacing a steer tube on a steel fork

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    Default Replacing a steer tube on a steel fork

    I bought a steel rando frame and fork and I would like to have the steer tube replaced as it is a bit shorter than I like.
    It appears to be brazed into the fork, so was wondering if it would be possible to send it to a builder and have a new longer one installed.
     

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    Default Re: Replacing a steer tube on a steel fork

    Yes, s/he would remove the old steerer and braze in a new one-- pretty straightforward stuff.
    One thought... you might ask how the old one will be removed. Most builders will heat it up, but a few will take the time to bore it out. The latter method keeps from heating up the fork crown an additional time.
    Is the fork crown chromed? That makes the repair a lot more time-intensive ($$$). Hopefully it is painted and not chromed. You can probably save yourself a few dollars and do the paint stripping yourself. It will also let the builder get a better look at things before s/he makes a work estimate.

    Bill Bryant
     

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    Default Re: Replacing a steer tube on a steel fork

    It can be done, but it’s easier to build another fork that suits your needs.
    Removing the steerer using heat would probably compromise the crown and the heat would be more than enough to unbraze the blades too.
     

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    Default Re: Replacing a steer tube on a steel fork

    can it be done? sure
    should it be done? not really*
    if you can't find a stem/bar combo that gives you more rise, just admit defeat and buy a new fork. you'll have to refinish a "rebuilt" one anyway and it's not going to be any cheaper than finding a new stock fork that works


    *why not? besides the heating/reheating of a CRITICAL component to you not dying/losing your teeth, it would make more sense to commission an all-new fork if you're going to hire a builder worth his/her salt
     

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    Default Re: Replacing a steer tube on a steel fork

    Rody Walter at Groovy Cycles has a vid showing him "grafting" a new steerer onto the existing one(damaged thread the reason) with no damage to paint. It's possible(if you can find someone to do it, maybe Rody?), guessing cheaper than buying a new fork from a good builder, no painting costs and you have the OEM on the bike.


    regards, Brian

    Take care of yourself in this time of crisis and realize sadness and grief are part of the process Brian Clare

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    Default Re: Replacing a steer tube on a steel fork

    If it is a "rando frame", then I'd seriously think of just getting a whole new fork in it. Would be a lot easier and might even be cheaper.
    Mark Walberg
    Building bike frames for fun since 1973.

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    Default Re: Replacing a steer tube on a steel fork

    I did contact the frame maker,Rodriguez and they will have one out to me painted to match for $250 shipped. I think that is a pretty good price for a low trail fork with fender and rack mounts.
    A local builder can cut it down,sleeve, tack weld sleeve through holes he would drill in both tubes and open butt weld and machine the whole thing down for $125.
    I will just go with the new fork tho.
     

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    Default Re: Replacing a steer tube on a steel fork

    $250 sounds like a very good price.
    Jorn Ake
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    Default Re: Replacing a steer tube on a steel fork

    Good way to go--Rodriguez is very good and super reasonably priced.
     

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    Default Re: Replacing a steer tube on a steel fork

    One note on Rody's video -- he's doing the graft on a Yo Eddie fork. That has a TIG welded joint from steering tube to crown. There's no option to 'unbraze' in this case. On a fork with a cast crown and brazed steerer tube, the removal/replacement would be a good deal simpler. The heat/reheat isn't a big issue on a piece that big. It takes a huge amount of heat in the first place to braze it. Whether or not the fork blades would be disturbed depends on the design on of the crown. If it's a rando, the blades are probably set far enough away (for wheel clearance) that the brazes on them would not be disturbed.

    That said, for $250, it's simpler easier and worth it to get a new fork.
    Jay Borden
    Roulez Cycles, now in the City of Synn Instagram: roulezcycles

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    Default Re: Replacing a steer tube on a steel fork

    Interesting.
    A couple of years ago I asked the same question and was chastised by a few of the big guys.
    Thankfully, more people took the time to write down another solution, which was actually what Rody from Groovy Cycles does. The (local) builder who did the "grafting" explained to me that the main issue was to stay away from the fork's crown yet have everything correctly set on a jig.
    Andrea "Gattonero" Cattolico, head mechanic @Condor Cycles London


    "Caron, non ti crucciare:
    vuolsi così colà dove si puote
    ciò che si vuole, e più non dimandare"

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