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1. A bicycle suspension system for attaching a rear wheel with a rear wheel axis of rotation and one or more different sized sprockets, to a bicycle frame having a right side, being on the right hand side when the bicycle frame is viewed from the rear, and having a bottom bracket with a bottom bracket axis of rotation, a pair of crank arms and one or more different sized chain rings, the one or more sprockets and the one or more chainrings defining at least one chain line, being the line defined by a chain under tension between the top of a sprocket and the top of a chain ring, the suspension system comprising:
a seat stay member that in use is pivotally attached to a bicycle frame at a seat stay-frame pivot having a seat stay-frame pivot axis; a link member that in use is attached to the bicycle frame at a link-frame pivot having link-frame pivot axis; a chain stay member having a wheel mount suitable for receiving a rear wheel axle and defining a rear wheel axis of rotation, wherein, in use:
the chain stay member is pivotally coupled to the seat stay member at a seat stay-chain stay couple having a seat stay-chain stay couple pivot axis located upward of the rear wheel axis of rotation; andthe chain stay member is pivotally coupled to the link member at a link-chain stay couple having a link-chain stay couple pivot axis; a shock absorber device that in use is directly or indirectly interconnected between two of the seat stay member, link member, the chain stay and the bicycle frame, for resiliently impeding relative movement of the components from an at-rest position; wherein, with the suspension system at a desired sag and the bicycle supported on a horizontal surface, the angle above the horizontal of a line passing through the seat stay-frame pivot axis and the link-frame pivot axis is less than or about equal to the angle above the horizontal of at least one of the one or more chain lines. |
