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Thread: '27 JD Cut Down Project - SWAN

  1. #41
    Join Date
    Aug 2013
    Posts
    753

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    Thanks Eric, yours is a beautiful example of a cutdown; certainly my JD is not in league with the JDH. i understand the last 4 pics i posted are not a cut down, but more on the order of a "bob job." with the additional expense, potentially having to modify an original frame, i have pretty much decided i am going in a different direction. and i think my custom is not going to be a bob job either.

  2. #42
    Join Date
    Nov 2018
    Posts
    14

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    Steve,
    I know you want a disc brake front end, I don't blame you they way other drivers can be.
    Have you considered installing a late model Harley springer with a disc brake, or install a disc to an original JD springer.
    Cheers,
    Mick

  3. #43
    Join Date
    Aug 2004
    Location
    Beautiful Northern New Mexico
    Posts
    2,483

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    My guess is one hard emergency stop with a disc on a J fork and it would be twisted like a pretzel. They were barely strong enough for the miserable drum of the time.
    Robbie Knight Amca #2736

  4. #44
    Join Date
    Nov 2018
    Posts
    14

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    Twin discs and duct tape?

    Sidecars put a big side load on the forks. Were these susceptible to twisting.
    Where the "I Beam" front ends developed to alleviate this twisting.

  5. #45
    Join Date
    Sep 2005
    Location
    Sarasota, Florida
    Posts
    3,860

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    I agree with Robbie on the J fork with a disk brake. Late J front brakes were hill holders at best and never designed to take the stress of modern brakes. If a person really wanted to use a J fork with disk brakes, I think a well thought out (and attached) truss on the rigid leg would be in order.
    Eric Smith
    AMCA #886

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