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738Re: [rootsradicals] Re: Surly Xtra-frame (Big Dummy)

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  • Devian Gilbert
    Dec 7, 2006
      My convert of choice has been my 2000 Cdale F900.
      i think the whole assembly just likes to wiggle.
      most noticably is during climbs.

      ride bikes


      On Thursday, December 07, 2006, at 01:29PM, "John Speare" <johnspeare@...> wrote:
      >On 12/7/06, Devian Gilbert <asanacycles@...> wrote:
      >
      >>
      >>
      >> if there is less frame flex
      >> ie: the wiggle
      >
      >my guess is that you may find less flex if you used an aluminum/OS
      >tubing mountain bike, than the steel (albeit OS and single-purposed)
      >surly frame, but that's a guess. I'm running my xtra on an old steel
      >Bridgestone MB2 mountain bike. I feel some flex when I carry a load
      >and my child is sitting on the seat mounted on teh top tube, but I
      >wouldn't want to ride the bike that didn't flex a bit under that load.
      >
      >
      >> and if the frame has a longer front center
      >> the geometry is improved, etc
      >
      >what does "longer front center" mean?
      >
      >Todd at cleverchimp has used 26" wheels on a Surly Karate Monkey to
      >lower the trail into this stratosphere. Most mountain bikes have off
      >the charts high trail...
      >
      >I seriously doubt the Big Dummy is going for a low (i.e. 40mm or
      >under) trail, as the vast majority of riders would find that "twichy."
      >especially with a big old load in the rear.
      >
      >> it brought the whole geometry of the bike back some.
      >
      >in what way? can you be more specific?
      >
      >>
      >> basically i have a hard time fine tuning the angles on my rig.
      >> the convert is a great setup, but there are for sure some things can can be improved upon.
      >
      >what are the geometric improvements that the big dummy offers?
      >
      >
      >>
      >>
      >> From what i can see of the endeavor of Surly in the Big Dummy, its a shot at refining the subtle nuances that we all have come to find/or maybe not even know.
      >
      >like what? I'm really interested in the subtle nuances and how they
      >relate to actual frame/bike design in this case.
      >
      >
      >--
      >John Speare
      >Spokane, WA USA
      >http://cyclingspokane.blogspot.com/
      >
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