Slimline Solo Vinyl SeatSame features and construction as Solo seats with a deeper side profile contour for bikes with steep backbones Heavy-gauge stamped steel pan with gently sloping rear kick for added support Stamped-in ridges on the pan increase stiffness and give the pan a clean, classic look with a matte black electroplated finish Covers are hand-stitched, heavy-duty black vinyl Foam is molded polyurethane, approximately 1” thick A unique carriage bolt system on the underside of the seat pan allows builders to fine tune the location of the seat hinge and both springs