Handlebars: thermal friction drilling to run cables
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Thread: Handlebars: thermal friction drilling to run cables

  1. #1
    Junior Member Smack92's Avatar
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    Handlebars: thermal friction drilling to run cables

    I want to change out my handlebars on my '73 CB350G. Brat style, less rise than stock. I've seen that the left and right switch boxes need to be moded to allow the cables to run outside the handlebars. I was thinking about using a thermal friction drill and create holes to run the cables inside the bars. Any thoughts??

  2. #2
    Super Moderator ancientdad's Avatar
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    You could just go with these, they are ready for the switch wiring to be run inside them like OEM. I have them on my 450

    https://4into1.com/chrome-handlebars...00f-1975-1976/
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    Tom

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    Senior Member Rscottp's Avatar
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    +1 but I wanna know what a thermal friction drill is?
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    Senior Member TOOLS1's Avatar
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    I think you need a sonic drill to drill cable holes in handlebars.
    TOOLS

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    Super Moderator ancientdad's Avatar
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    ^^^or just buy them ready for internal wiring...
    Tom

    CL450 project reboot, street legal this time
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    CB350K1 full patina project
    Ride along at the drag strip


    running points... because I'm too old for mysteries that begin with pushing

  7. #6
    Senior Member Bill H's Avatar
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    Am I missing something here? I just set them up in my drill press, drill a couple of holes then file them oval .

    Bill
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  8. #7
    Super Moderator ancientdad's Avatar
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    Yeah Bill, I think we're all wondering...
    Tom

    CL450 project reboot, street legal this time
    Budget drag bike project
    CB350K1 full patina project
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    running points... because I'm too old for mysteries that begin with pushing

  9. #8
    Senior Member Richard_Pitman's Avatar
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  10. #9
    Senior Member 83XLX's Avatar
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    From reading that description, you wouldn't want to use that method on chromed handlebars. Sounds like it would discolor them around the hole. I'd also guess you need some very specialized equipment to do it.
    1969 Honda CL350
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  11. #10
    Junior Member Smack92's Avatar
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    Follow up

    Quote Originally Posted by ancientdad View Post
    Yeah Bill, I think we're all wondering...
    So I am a newb, but I haven't found many options in the pre-drilled bars like ancientdad provided (thank you!).

    I'm looking for black & a ~3in rise, like these Renthal's in Low: https://www.revzilla.com/motorcycle/...-handlebars-78

    In regards to the thermal drilling:
    You can use them in a drill press as long as you are getting the right RPM for the hole/metal combo

    I dont know why, but I really like the looks of those holes with the rounded top, and while not too visible in bars I might use for future mods...

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