Patent ID: 7392999
Filing Date: 2008-07-01
Classification: B62K

Abstract:
1. A rear wheel suspension system for a bicycle having a frame with at least a bottom bracket, a seat tube, a top tube and a down tube, the suspension system comprising: upper and lower pivots adapted to be fixed to said frame at two spaced apart points thereon, said lower pivot being disposed proximate said bottom bracket; a swing-arm having a forward end pivotally connected directly to said frame by said lower pivot such that said swing-arm pivots about a fixed point at said lower pivot, said swing-arm having a wheel mounting bracket at a rear end thereof for receiving a rear wheel axis; a first link member having an upper end pivotally connected to said upper pivot and a displaceable lower end pivotable about said upper pivot; an intermediate lower link member having a forward end pivotally connected to said first link member and a rearward end pivotally connected to said swing-arm; said first link member rotating in a direction opposite to the rotation of said swing-arm as said suspension system compresses; and a shock absorber having a first end pivotally connected to said first link member and a second end adapted for connection with said frame.