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  1. #1
    mtbr member
    Join Date
    Jan 2011

    Henry James Access 65 JIG modifications

    One thing that I have found frustrating on the HJ Jig was holding the chain and seat stays in place for tacking. Seat stays in particular sorta want to flop away from the frame and trying to hold them with one hand while tacking with the other was not producing good results.

    I recently made a JIG attachment for my Henry James Access 65 JIG. I also created a through axle for the JIG. I also made up a way of indicating effective chain length and chainring clearance with a virtual EBB and other drivetrain bits so I could dial in the perfect chain length. The 75mm block on the plate also gives me a reference for the proper 29er tire clearance. The mods have worked out very well and was super easy to create. I figured that I would share the mods here in case other are looking for ideas.

    Same plate rotated to seat stay mode after I installed the virtual tire.

    The next modification that I am thinking about is a better way of holding the seat tube and indicating the proper seat tube angle. I have some vague ideas in head but would love to see the mods others have made for the HJ Jig.

    If you have mods for the HJ jig please share some photos.

  2. #2
    mtbr member
    Reputation: Eric Malcolm's Avatar
    Join Date
    Dec 2011
    Could you put disc post mounts on there as well?

    Very good set up.

    If I don't make an attempt, how will I know if it will work?

  3. #3
    Eric the Red
    Reputation: edoz's Avatar
    Join Date
    Jan 2004
    Ok, that chainring setup is pretty rad.

  4. #4
    will rant for food
    Join Date
    Jan 2010
    I take it that the first image to make magic gear SS / IGH setups more effectively. Nicely done.
    Disclaimer: I run Regular Cycles (as of 2016). As a profiteer of the bicycle industry, I am not to be taken very seriously.

  5. #5
    mtbr member
    Join Date
    Jan 2011
    Quote Originally Posted by Drew Diller View Post
    I take it that the first image to make magic gear SS / IGH setups more effectively. Nicely done.
    Ya, I focus on single speed. On my current build, my aim is to support a short throw EBB positioned such that the phase will in just the right spot when the chain is new and move across the phase. It's hard to tell from the photo but I have a virtual EBB in there because some of the time the bike will be setup with 36x22 for single speed application. I setup the virtual drivetrain so I could dial things in to really aim for having the EBB move only across the top of it's arc.

  6. #6
    mtbr member
    Join Date
    Jan 2011
    I need a fixture or a JIG attachment for installing direct mount front derailures

    I found this post from meriwethercycles. But am also looking for other ideas.
    Direct Mount braze-on | Meriwether Cycles

    Right now I am thinking of mouting it relative to the virtual crankset spider. Based on the way DM is designed it looks like getting the face in plane with the chainring is critical.

    What sort of designs are you guys using for this?

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