Abstract: Seat mounting assembly for a bicycle seat includes a base, a cradle supporting the bicycle seat above the base having a bearing surface of the base, a first clamp including a bolt and nut and head that tightens to lock the cradle to the base and it releases to allow the cradle to rotate relative to the base and a second clamp operable independently of the first clamp and in coaxial concentric arrangement with the first clamp locks the seat to the cradle to allow the seat to be moved front to rear relative to the base.