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Thread: Fs Ss??

  1. #1
    Reputation: Prime8's Avatar
    Join Date
    Apr 2004

    Fs Ss??

    A buddy and I want to build SS bikes, but want FS frames...are we SOL? How much the the stay length change on a 'specialized four-bar' system? Will a tensioner take up enough slack?

    Bikes will be used mostly for street and dirt jumps.

    thanks for any advice!

  2. #2
    Zippy, the wonder bike
    Join Date
    Feb 2004
    Check out the Kona "A", I think it is the only FS SS there is. It's only available as a frame now though.

  3. #3
    Not a regular
    Join Date
    Jan 2004
    The Kona is more of an XC type ss. If you are looking for street/jump type bike and want a FS, the Specialized (or any other FS bike) is suitable, but you will need to run a derailleur as a tensioner. Modify the main spring in the derailleur to the stiffer setting to keep tension high. I ran a full suspension bike as a ss for a while with a rear derailleur as a tensioner and it worked great. FYI - a short cage road type derailleur (105 is a good choice) works well.

  4. #4
    Reputation: Prime8's Avatar
    Join Date
    Apr 2004

    good news

    I was hoping that four-bar would work, since practicaly every bike maker licensed it. Thanks!

  5. #5
    6x7=Dont Panic!
    Reputation: TheRedMantra's Avatar
    Join Date
    Jan 2004
    You could always go with a URt like the Mantra or Catamount. Ive got a friend with a SS mantra and he loves it.
    Herro prease

  6. #6
    Let go lightly
    Reputation: CruzSS's Avatar
    Join Date
    Feb 2004

    Go with a derailleur or a Paul Melvin

    A friend has a 3 speed hard tail with a triple in the front and a single gear in the back tensioned with the Paul Melvin. Not FS, but the tensioner takes up the slack really well. Should work fine for a SS FS or if you want to make it cheap just use a derailleur (see the SS FAQ). Don't use a Surly singleator - not enough travel or spring tension to keep the chain on IMO.

    Cruz SS

  7. #7
    mtbr member
    Reputation: Hooligan's Avatar
    Join Date
    Dec 2003
    If you wanted a more freeride ish bike you could try a Cove G-spot. It looks to have the same type of swing arm set up as the Kona


  8. #8
    Reputation: DeeEight's Avatar
    Join Date
    Jan 2004
    Any FS bike with a concentric BB main swingarm pivot (which includes frames from Kona, Cove, Wheeler, and others) can be setup as a singlespeed without a tensioner (though the vert drops tend to limit your gearing choices) because regardless of where the suspension is in its travel, the distance from axle center to BB center remains constant, as the swingarm pivots around the BB shell.

    Also any URT (which includes slingshots) its the same way, because the axle to BB center distance never changes.

    Most softtails (the ones in the 1.5" travel or less category) can also be run without a tensioner, because the amount of travel they have plays a very minimal change on the effective chainstay length.

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