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Thread: EC44/40 Headset

  1. #1
    Genius_rider
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    EC44/40 Headset

    Hi,

    Has any one used the Cane Creek EC44/40 heaset to fit a tapered fork into a straight 1 1/8 designed headtube? If so, how does it work?

    This may be the answer to fit the 650b tappered forks to old style 1 1/8 designed bikes.

    Thanks

  2. #2
    From Russia with luv!
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    What's the ID (inner diameter) of your headtube? If it's 44mm, then you will be able to use tapered fork with EC44 headset.
    If it's a classic MTB 34mm ID headtube, then EC44 won't fit.
    And also, sterere won't fit.

    Dmitry

    PS: What's the frame? Take a picture and post here, this might help
    TritonBikes.com

    Titanium frames and components handbuilt in Russia

  3. #3
    nothing relevant to say
    Reputation: Cracked Headtube's Avatar
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    Sadly, your thinking is a bit skewed. The 44 designates the headtube ID. The 40 designates the crownrace of the fork. This lower headset cup is for a tapered fork and 44mm (ID) headtube.
    A traditional 1.125 headtube has an ID at 33.95mm which equals EC34, per the S.H.I.S .

    A Zero-Stack or Semi integrated headtube for 1.125 has an ID 43.95, and COULD accept the EC44 lowercup. if the headtube has a cup-depth ability of at least 12.5mm, where 15 is safer.

    Cane Creek has some great Tech Manuals located HERE

  4. #4
    Genius_rider
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    It is a 2011 Specialized Camber with ZS 44 mm headset, so it seems the EC44 would work. I just read in this link

    I need your opinions on my fork

    that: "Nominal insertion bore depth for 44mm head-tubes is 9mm. EC44/40 requires an insertion depth of 15mm. Park Tool Reamer 788 should be used with the supplied spacer to reach the 15mm bore depth for EC44/40 Bottoms. " so I need to check if this reaming would be needed as well.

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