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Bicycle rear suspension

  • US 8,590,914 B2
  • Filed: 04/29/2011
  • Issued: 11/26/2013
  • Est. Priority Date: 07/27/2007
  • Status: Active Grant
First Claim
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1. A bicycle frame, comprising:

  • a substantially rigid front triangle including a bottom bracket shell and a head tube for holding a front wheel via a fork;

    a substantially rigid rear triangle for holding a rear wheel;

    a top linkage pivotally connected to the front triangle at a top-front pivot axis and pivotally connected to the rear triangle at a top-rear pivot axis; and

    a bottom linkage pivotally connected to the front triangle at a bottom-front pivot axis and pivotally connected to the rear triangle at a bottom-rear pivot axis;

    the top-front, top-rear, bottom-front, and bottom-rear pivot axes positioned such that at 0% suspension compression, a line extending from the top-rear pivot axis through the top-front pivot axis intersects a line extending from the bottom-rear pivot axis through the bottom-front pivot axis at a focus that is located in a space bounded by;

    a front line that is an axis of the head tube,a bottom line extending horizontally from an axis of the bottom bracket shell,a top line 130 mm above and parallel to the bottom line, anda rear line that is perpendicular to the bottom line and the top line and 200 mm in front of an axis of the bottom bracket shell.

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