Abstract: A bicycle frame is adapted to provide suspension to a human user. The bicycle frame has a top tube and down tube connected to a head tube. A seat tube, fixed to the top tube and down tube connects to the bottom bracket. A chain stay is rotatably coupled to the seat tube at a chain stay pivot. A seat stay is rotatably coupled to the seat tube at a seat stay pivot. An upper shock mount is attached to a distal end of the seat stay forward of the seat stay pivot. A lower shock mount is attached to the chain stay rearward of the seat stay pivot. A shock is connected to the upper shock mount and the lower shock mount passing the seat tube from forward to rearward. A rear axle plate is attached to the seat stay and the chain stay and configured to accommodate a rear axle.