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  1. #1
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    1 1/8 to tapered adapter

    I am looking to upgrade the current setup of my bike to 150mm instead of 130 on the front. the problem is my headtube is 1 1/8 straight, and the fork i have is tapered. is there an adapter i can buy that fits on to my bike that will allow me to to make this mod? thanks a lot.

  2. #2
    Sneaker man
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    you mean the fork that is already on it is tapered, and the one you want to pu ton is straight 1-1/8? or the for you want to put on it is tapered?
    For the former, I imagin so, for the latter, if you headtube is a Zero stack headset, internal bearing design, then it can be done. If it regular straight with external bearings, then it cannot be done (probably, maybe someone managed it somehow, but not usually).

    See here to figure out:
    http://www.canecreek.com/wp-content/...his-poster.pdf
    All the gear and no idea.

  3. #3
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    Like me get this straight. You have a bike with a 1.125" head tube, and you currently have a tapered fork that is not mounted on the bike?
    I heard of an adapter, to fit a tapered fork into a untapered head tube but I never was able to locate one.
    EXODUX Jeff

  4. #4
    since 4/10/2009
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    Quote Originally Posted by Matt_Sinclair View Post
    I am looking to upgrade the current setup of my bike to 150mm instead of 130 on the front. the problem is my headtube is 1 1/8 straight, and the fork i have is tapered. is there an adapter i can buy that fits on to my bike that will allow me to to make this mod? thanks a lot.
    Depends on the specific dimensions of the head tube on your bike.

    If you have a 44mm head tube, you'll need a new lower headset cup. If your head tube is 34mm, you're SOL.

  5. #5
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    What frame do you have?

  6. #6
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    I have 2 bikes with the above mentioned 44mm, both running tapered, but there is limitations on some frames due to insertion depth for the bearing cup.

  7. #7
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    trek marlin

  8. #8
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    130mm is already much longer than what is appropriate, probably what is safe for a Trek Marlin. 150mm is just silly. It's the most absurd chopper modification.

    I don't think it will work. You need a frame that was designed for a 44mm or larger headset cup and something that will withstand such a long fork.

  9. #9
    RAKC
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    That bike doesnt even come with 130 and already maxing that frame out. No one needs 150mm on a hardtail and is beyond stupid on that bike. All it will accomplish is causing the frame to fail.

    Sent from my SM-N975U using Tapatalk

  10. #10
    since 4/10/2009
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    Quote Originally Posted by tigris99 View Post
    No one needs 150mm on a hardtail and is beyond stupid on that bike.
    While I agree 150mm on a Marlin is a very, very bad idea, there are plenty of hardtails built to accept a 150mm fork. I ride one with a 140mm fork (that is within the spec of the frame). With the right frame, a longer fork on a hardtail can be a lot of fun. I ride mine and enjoy doing so on terrain that most people wouldn't ride anything less than an enduro FS bike on these days.

    On the wrong frame, you're likely to injure yourself and destroy your bike.

  11. #11
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    Budget frame with semi-integrated headset, no go. And max 100mm fork per site. I wouldn't hesitate for a second to run 120, but no longer.

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