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  1. #1
    Tuck Fexas SoonerLater's Avatar
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    Threadless Steerer Tube Removal & Reinstallation

    How is a threadless steerer tube removed from an existing suspension fork (after both have been removed from the bike)?

    REMOVAL: Do you just put the fork dropouts against a block of wood (with the fork standing vertically) and then use a rubber mallet to drive the steerer tube down to dislodge it?

    REINSTALLATION: ??? Maybe place the fork upside down with crown against the open (and cloth protected) jaws of a vise and then use a mallet and block of wood to drive the steerer tube down into the new fork?

    I have read both Zinn books on bike maintenance (road and mountain), but if the answer is there, I'm not smart enough to understand it.

    I need to replace the broken fork on my Trek hybrid (Navigator 100). OEM on this bike is a RST CT Com I suspension fork, which I have removed from the bike. The existing steerer tube seems just fine, so I'd like to reuse it. Every online vendor of the RST forks that I can find sells the new forks without a steerer tube installed. All the similar suspension forks I can find that are sold with a steerer tube preinstalled are a lot more expensive. I'm happy to go back with OEM or something pretty similar. People have already suggested in this Bikeforums
    thread that I install a rigid fork instead, but nobody has explained how to remove or reinstall a steerer tube, which is my main question.

  2. #2
    Senior Member mechBgon's Avatar
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    Is the steerer tube held into the old fork with a clamp mechanism, or is it a permanent press-fit? If it's the latter, throw the whole thing out and buy the necessary steerer tube to fit your new fork, that's my advice. If it's the former, then loosen the clamp bolts and use the rubber-mallet technique.

  3. #3
    Tuck Fexas SoonerLater's Avatar
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    It seems to be the permanent press-fit variety, so I'll throw it all away. That's one step closer to riding again.

    Why is it that all of the RST forks seem to be sold without steerer tubes installed? If I have to toss my existing fork and steerer, how would I attached a new steerer to a new RST fork? The information on the RST site is very un-helpful.

    This bike sold new for just a little over $300. I hate the thought of spending $200 on just a fork. I suppose that I can always put a rigid fork (<$50) on it and see how I like the ride or else I can break down and order one from my LBS Trek dealer grrrrrr

  4. #4
    Senior Member mechBgon's Avatar
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    Quote Originally Posted by SoonerLater
    It seems to be the permanent press-fit variety, so I'll throw it all away. That's one step closer to riding again.

    Why is it that all of the RST forks seem to be sold without steerer tubes installed? If I have to toss my existing fork and steerer, how would I attached a new steerer to a new RST fork? The information on the RST site is very un-helpful.

    This bike sold new for just a little over $300. I hate the thought of spending $200 on just a fork. I suppose that I can always put a rigid fork (<$50) on it and see how I like the ride or else I can break down and order one from my LBS Trek dealer grrrrrr
    The benefit of the new forks having a removable steer tube, is that the dealer can stock the expensive lower part of the fork without worrying that he's going to be stuck with them because they have a permanent steer tube that doesn't meet your needs (threaded v. threadless, for example). Also, if you buy the fork and then later you switch bikes, or want to convert from threaded to threadless or vice versa, you don't have to buy the whole fork over again, you just buy a new steer tube and there ya go

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