Abstract: The invention realizes a saddle (1) for bicycles including two separate seats (2, 3) supported by a supporting unit (4) fixed to the bicycle frame. Each one of said seats (2, 3) includes at least a first part (2′, 3′), fixed with respect to said supporting unit (4) and at least a second part (2″, 3″), movable with respect to said first part (2′, 3′). Said second part (2″, 3″) is revolvingly connected to a gudgeon (10, 11) defining an axis (10a, 11a) substantially horizontal placed substantially orthogonally to the advancement direction (6) of the bicycle.