Patent ID: 7815207

Claim:
A rear wheel suspension system for a two-wheeled vehicle which comprises a main frame, the suspension system comprising: a rear frame pivotally connected to an upper linkage and a lower linkage, said rear frame being connected to said lower linkage by a first lower pivot member and said rear frame being pivotally connected to said upper linkage by a first upper pivot member; a rear wheel coupled to said rear frame; a bottom bracket mounted to said main frame, said bottom bracket being structured to house a pedal assembly; and a biasing member connected to at least said main frame and said upper linkage, the biasing member structured to be compressed in response to a force applied to said rear wheel, wherein said main frame is connected to a housing of said lower linkage by a second lower pivot member, and wherein said first lower pivot member being positioned forward of said second lower pivot member, wherein said main frame is pivotally connected to said upper linkage by a second upper pivot member, said first upper pivot member being positioned forward of said second upper pivot member, and wherein said biasing member is pivotally connected to said upper linkage by a third upper pivot member.