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  1. #1
    Elitest Murray Owner Mos6502's Avatar
    Join Date
    Apr 2006
    My Bikes
    1972 Columbia Tourist Expert III, Columbia Roadster
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    Mono chain and seat stays.

    My old Columbia has a mono chain stay (the chainstays are actually one tube which is formed like an extremely tall U and then joined at the bottom of the U to a short tube which connects to the BB) and I always thought this was peculiar, it seemed to be that this would be given to more side to side flexing than conventional chain stays.
    Now I'm seeing a lot of new bikes that have these mono seat and chain stays - are they stronger/lighter or somehow better than the traditional designs? I'm just wondering what the reason behind this is.

  2. #2
    Senior Member
    Join Date
    Dec 2005
    Location
    Auld Blighty
    My Bikes
    Early Cannondale tandem, '99 S&S Frezoni Audax, '65 Moulton Stowaway, '52 Claud Butler, TSR30, Brompton
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    Cheaper to manufacture, mostly.

  3. #3
    Banned
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    Aug 2005
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    They are cheaper, some respects they also work out well in situations where the exact part you are after may not be available: really large bikes, possibly some 29er projects, or specialty things like the Bike Friday, or super long stay touring bikes.

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