how do you hold the backplate on a t500 drum?
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how do you hold the backplate on a t500 drum?

This is a discussion on how do you hold the backplate on a t500 drum? within the Technical forums, part of the Caferacer.net Forums category; I want to know how do you hold the backplate of a t500 front drum to a cb350 fork leg? Do you need to weld ...

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  1. #1
    Senior Member kochic's Avatar
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    how do you hold the backplate on a t500 drum?

    I want to know how do you hold the backplate of a t500 front drum to a cb350 fork leg?
    Do you need to weld a tab on the leg?
    or can i weld a threaded boos on the backplate for a torque arm?
    Any help or pictures is welcome.
    thank you,
    marc
    honda cb350 1973
    suzuki gs1000 1978

  2. #2
    Senior Member crazypj's Avatar
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    I would have boss welded to back plate, if you distort fork it wont work, if you get distortion on back plate it's easier to fix
    I dabble in rocket science, when I\'m not picking my nose
    The other night I gave my girlfriend an orgasm, but, she spat it back at me

    'you can take my word for it or argue until you find out I'm right'

  3. #3
    Senior Member crazypj's Avatar
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    I would have boss welded to back plate, if you distort fork it wont work, if you get distortion on back plate it's easier to fix
    I dabble in rocket science, when I\'m not picking my nose
    The other night I gave my girlfriend an orgasm, but, she spat it back at me

    'you can take my word for it or argue until you find out I'm right'

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  5. #4
    Moderator jbranson's Avatar
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    This is how I did a T500 to a CB550 fork ... I'm using a caliper mounting point here, but you could probably use one of the fender mount bolt holes. I drilled and tapped two 6mm holes on either side of the backing plate "Lug" slot and made a stay rod that connected to the bolt hole on the fork. Worked great.
    JohnnyB


  6. #5
    Moderator jbranson's Avatar
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    This is how I did a T500 to a CB550 fork ... I'm using a caliper mounting point here, but you could probably use one of the fender mount bolt holes. I drilled and tapped two 6mm holes on either side of the backing plate "Lug" slot and made a stay rod that connected to the bolt hole on the fork. Worked great.
    JohnnyB


  7. #6
    Senior Member kochic's Avatar
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    Thanks guys,
    i will try to make a bracket and if i'm not happy with the result i will bring the backplate at work to weld a threaded boss.
    I dont really want to tilt the backplate foward, i want to retain a good angle for the speedo drive.This bike will be a road bike for this summer and if everything work has planned i want to participate at least the quebec and maybe shannonville vrra round.
    marc
    honda cb350 1973
    suzuki gs1000 1978

  8. #7
    Senior Member kochic's Avatar
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    Thanks guys,
    i will try to make a bracket and if i'm not happy with the result i will bring the backplate at work to weld a threaded boss.
    I dont really want to tilt the backplate foward, i want to retain a good angle for the speedo drive.This bike will be a road bike for this summer and if everything work has planned i want to participate at least the quebec and maybe shannonville vrra round.
    marc
    honda cb350 1973
    suzuki gs1000 1978

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