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  1. #1
    I'm Carbon Curious 531phile's Avatar
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    triple crank = perfect chainline on the cheap

    I was just messing around tonight and discovered that using a triple crankset(not on granny gear) got me a perfect chainline without having to change out the bottom bracket or mess around with cog spacers. Does anyone else ride a SS/FG setup with a triplecrank? I knoe it's not pretty, but it sure does beat replacing the bottom bracket(got no tools)

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  2. #2
    I'm Carbon Curious 531phile's Avatar
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    Also, I noticed the same thing with one of my BMX cranks. I got a whole bunch of Sugnio XD's that I wanted to use, but I can't get a good chainline with them.

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  3. #3
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    it is easier now sine they make even sided spindles. years ago (80s -back) that was going to happen.

    S./F.
    C.E.Y.A.!

  4. #4
    I'm Carbon Curious 531phile's Avatar
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    the bikes that I put them on were a 1988 bianchi and 1985 Trek 500 Both with square tapered bottom brackets

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  5. #5
    I'm Carbon Curious 531phile's Avatar
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    The triple crank that I used as 1980s Suntour X-1 and Sugino BMX (no model name)

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  6. #6
    Barbieri Telefonico huhenio's Avatar
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    Choices choices choices ...
    Giving Haircuts Over The Phone

  7. #7
    Senior Member GetOutOfNJ's Avatar
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    thats what I had on my fixie until it ate my pants off.

  8. #8
    this bike is an aqueduct Matthew A Brown's Avatar
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    On a weird comp so not sure how to just "attach" the guy...

    But switched the rings on a double crank and cold-set (pushed really hard) on the rear stays and I've got as fine line as can likely be had for 30 min of light wrenching and no dough. Maybe a little bit of noise pushing back, thass about it...

    Plus, looks silly as hell...

    Villin custom touring | Raleigh XXIX | Medici Pro Pista | 1978 Schwinn Stingray

  9. #9
    Matthew Grimm / Flunky Kogswell's Avatar
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    Quote Originally Posted by 531phile
    I was just messing around tonight and discovered that using a triple crankset(not on granny gear) got me a perfect chainline without having to change out the bottom bracket or mess around with cog spacers. Does anyone else ride a SS/FG setup with a triplecrank? I knoe it's not pretty, but it sure does beat replacing the bottom bracket(got no tools)
    Yep.

    The middle of most triples is at 45mm if you use its matching BB.

    And, the outside of most triples is at 52mm, which explains why 135mm FG hubs have 52mm chainlines.

    Rivendell uses Suginoo XD (triple) cranks on the 120mm Quickbeam. They put the ring in the middle position.

    Kind of a no-brainer.

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