Patent ID: 7909347
Filing Date: 2011-03-22
Classification: B62K

Abstract:
1. A bicycle comprised of a front triangle and a rear wheel suspension system, the rear wheel suspension system including a rear wheel swingarm, a first linkage member coupled to the rear wheel swingarm at a first pivotal connection and coupled to the front triangle at a second pivotal connection, and a second linkage member coupled to the rear wheel swingarm at a third pivotal connection and coupled to the front triangle at a fourth pivotal connection; wherein the first linkage member defines a distance of approximately 58 millimeters between the first and second pivotal connections; wherein the second linkage member defines a distance of approximately 98 millimeters between the third and fourth pivotal connections; wherein the second pivotal connection is disposed approximately 30.5 millimeters behind and approximately 26 millimeters above a pedal axis of the bicycle when the bicycle is in an upright horizontal orientation; wherein the fourth pivotal connection is disposed approximately 17.7 millimeters behind and approximately 119.5 millimeters above the pedal axis when the bicycle is in an upright horizontal orientation; and in which the rear suspension system is configured such that a rate of chainstay lengthening decreases in a linear manner with respect to increasing vertical movement of a rear wheel of the bicycle and an anti-squat response under acceleration and braking decreases in a linear manner with respect to increasing vertical movement of the rear wheel.