A forecarriage for a motor vehicle comprising: a tilting four-bar linkage comprising: a first crossbar, a second crossbar, a first upright and a second upright (35"), hinged together; a respective suspension unit (28', 28") associated with each upright (35', 35"), the respective first and second suspension units (28', 28") comprising: - a wheel support (41, 41") for a wheel (3', 3") of the motor vehicle, said wheel support defining a rotation axis (43', 43") of the wheel (3', 3"); - a support arm (23', 23") rotatably connected to the respective upright (35', 35") so as to rotate around a steering axis (27', 27"); - a first crank (42A', 42A") joined to the wheel support (41', 41") and the support arm (23', 23") through respective first articulation axes (47A', 48A'; 47A", 48A") and a second crank (42B', 42B") joined to the wheel support (41', 41") and the support arm (23', 23") through respective second articulation axes (47B', 48B'; 47B", 48B"), wherein the first crank (42A', 42A"), the second crank (42B', 42B"), the wheel support (41', 41") and the support arm (23', 23") form a suspension four-bar linkage 25', 25"); - a shock absorber (26', 26") constrained at two points (26A', 26A"; 26B', 26B") of the suspension four-bar linkage (25', 25"), said two points being such that the mutual distance of said two points changes when the suspension four-bar linkage (25', 25") moves, causing a change in the length of the shock absorber, characterized in that said respective first articulation axes and said respective second articulation axes are orthogonal to a plane fully containing the rotation axis (43', 43") of the wheel (3', 3"). a tilting four-bar linkage comprising: a first crossbar, a second crossbar, a first upright and a second upright (35"), hinged together; a respective suspension unit (28', 28") associated with each upright (35', 35"), the respective first and second suspension units (28', 28") comprising: - a wheel support (41, 41") for a wheel (3', 3") of the motor vehicle, said wheel support defining a rotation axis (43', 43") of the wheel (3', 3"); - a support arm (23', 23") rotatably connected to the respective upright (35', 35") so as to rotate around a steering axis (27', 27"); - a first crank (42A', 42A") joined to the wheel support (41', 41") and the support arm (23', 23") through respective first articulation axes (47A', 48A'; 47A", 48A") and a second crank (42B', 42B") joined to the wheel support (41', 41") and the support arm (23', 23") through respective second articulation axes (47B', 48B'; 47B", 48B"), wherein the first crank (42A', 42A"), the second crank (42B', 42B"), the wheel support (41', 41") and the support arm (23', 23") form a suspension four-bar linkage 25', 25"); - a shock absorber (26', 26") constrained at two points (26A', 26A"; 26B', 26B") of the suspension four-bar linkage (25', 25"), said two points being such that the mutual distance of said two points changes when the suspension four-bar linkage (25', 25") moves, causing a change in the length of the shock absorber, characterized in that said respective first articulation axes and said respective second articulation axes are orthogonal to a plane fully containing the rotation axis (43', 43") of the wheel (3', 3"). - a wheel support (41, 41") for a wheel (3', 3") of the motor vehicle, said wheel support defining a rotation axis (43', 43") of the wheel (3', 3"); - a support arm (23', 23") rotatably connected to the respective upright (35', 35") so as to rotate around a steering axis (27', 27"); - a first crank (42A', 42A") joined to the wheel support (41', 41") and the support arm (23', 23") through respective first articulation axes (47A', 48A'; 47A", 48A") and a second crank (42B', 42B") joined to the wheel support (41', 41") and the support arm (23', 23") through respective second articulation axes (47B', 48B'; 47B", 48B"), wherein the first crank (42A', 42A"), the second crank (42B', 42B"), the wheel support (41', 41") and the support arm (23', 23") form a suspension four-bar linkage 25', 25"); - a shock absorber (26', 26") constrained at two points (26A', 26A"; 26B', 26B") of the suspension four-bar linkage (25', 25"), said two points being such that the mutual distance of said two points changes when the suspension four-bar linkage (25', 25") moves, causing a change in the length of the shock absorber, characterized in that said respective first articulation axes and said respective second articulation axes are orthogonal to a plane fully containing the rotation axis (43', 43") of the wheel (3', 3").