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  1. #1
    keeping it all together
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    brake-lever integrated shifters

    so downtube shifters, thumb shifters, bar end shifters, they all seem to work on pretty much the same principle and to make a good deal of sense. brake-lever integrated shifters, though, how the hell do they work? could someone please explain what's going on inside those things to this curious individual? thanks.

  2. #2
    DEADBEEF khuon's Avatar
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    Aug 2002
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    Catching his breath alongside a road near Seattle, WA USA
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    Quote Originally Posted by spindle
    so downtube shifters, thumb shifters, bar end shifters, they all seem to work on pretty much the same principle and to make a good deal of sense. brake-lever integrated shifters, though, how the hell do they work? could someone please explain what's going on inside those things to this curious individual? thanks.
    Same principle: levers pull or release cable tension. It's just the way they are jury-rigged to do this that's different. Generally speaking, there's a ratchet mechanism which spools the cable up as you push on a lever. Then there's a clutch, pawl or ratchet-stop of some sort that can be released to slacken the cable. The only "tricky" part is packaging it all into a compact enough space with the proper linkages to allow you place everything into one unit.
    1999 K2 OzM 2001 Aegis Aro Svelte OCP Club Member
    "Be liberal in what you accept, and conservative in what you send." -- Jon Postel, RFC1122

  3. #3
    Senior Member demoncyclist's Avatar
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    It's magic.
    DEMON

    Satanic Mechanic
    STAR 3 Spinning Instructor

    2011 Lynskey Sportive (Shimano Ultegra 10s)
    1988 Cannondale SM400 (Suntour XC-M 7s)

  4. #4
    feros ferio John E's Avatar
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    Quote Originally Posted by khuon
    ... The only "tricky" part is packaging it all into a compact enough space with the proper linkages to allow you place everything into one unit.
    The REAL trick is making them reliable and durable. I'll keep my 45-year-old Campag. friction downtube levers, thank you.
    "Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
    Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
    Peugeot: 1970 UO-8, S/N 0010468
    Bianchi: 1981 Campione d'Italia, S/N 1.M9914
    Schwinn: 1988 Project KOM-10, S/N F804069

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