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  1. #1
    mtbr member
    Join Date
    Jul 2009

    jamis dragon 650b hta

    geometry chart for the dragon 650b shows the head tube angle at 68 degrees
    with a 120mm suspension fork.
    if using a 100mm suspension fork, how would this change the head tube angle?

  2. #2
    mtbr member
    Join Date
    Oct 2010
    About 1 degree or a bit less.

    I'm interested to know what Axle to Crown the 68 degree is measured at... if its a 120mm fork with 30mm sag then the head angle is even slacker than a Ragley Piglet, which would surprise me. On the other hand, if the 68 degrees is based on a fully extended 120mm fork, then the seat angle is really steep instead :-)

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