An adjustable-compression suspension kit for a wheeled vehicle including a handlebar, said suspension kit comprising: • a first hydraulic suspension with adjustable compression including a first compression adjustment member configured to increase the compression of the first suspension when it is actuated in a first manner and to reduce the compression of the first suspension when it is actuated in a second manner, opposite to the first manner; • a second hydraulic suspension with adjustable compression including a second compression adjustment member configured to increase the compression of the second suspension when it is actuated in a first manner and to reduce compression of the second suspension when it is actuated in a second manner, opposite to the first manner; • an actuator device for actuating the first and second suspensions, and presenting at least a first position and a second position that is distinct from the first position; • a first cable portion having a first end connected to the actuator device and a second end connected to the first adjustment member; and • a second cable portion having a first end connected to the actuator device and a second end connected to the second adjustment member; the kit being characterized in that, when the actuator device is moved from said first position to said second position, said actuator device is configured to move the first cable portion in a first direction in order to actuate the first adjustment member in the first manner and to move the second cable portion in a second direction, opposite to the first direction, in order to actuate the second adjustment member in the first manner, in order to increase the compression of the first and second suspensions (24, 26), and when the actuator device is moved from said second position to said first position, said actuator device being configured to move the first cable portion in the second direction in order to actuate the first adjustment member in the second manner and to move the second cable portion in the first direction in order to actuate the second adjustment member in the second manner, in order to reduce the compression of the first suspension and second suspensions. • a first hydraulic suspension with adjustable compression including a first compression adjustment member configured to increase the compression of the first suspension when it is actuated in a first manner and to reduce the compression of the first suspension when it is actuated in a second manner, opposite to the first manner; • a second hydraulic suspension with adjustable compression including a second compression adjustment member configured to increase the compression of the second suspension when it is actuated in a first manner and to reduce compression of the second suspension when it is actuated in a second manner, opposite to the first manner; • an actuator device for actuating the first and second suspensions, and presenting at least a first position and a second position that is distinct from the first position; • a first cable portion having a first end connected to the actuator device and a second end connected to the first adjustment member; and • a second cable portion having a first end connected to the actuator device and a second end connected to the second adjustment member; the kit being characterized in that, when the actuator device is moved from said first position to said second position, said actuator device is configured to move the first cable portion in a first direction in order to actuate the first adjustment member in the first manner and to move the second cable portion in a second direction, opposite to the first direction, in order to actuate the second adjustment member in the first manner, in order to increase the compression of the first and second suspensions (24, 26), and when the actuator device is moved from said second position to said first position, said actuator device being configured to move the first cable portion in the second direction in order to actuate the first adjustment member in the second manner and to move the second cable portion in the first direction in order to actuate the second adjustment member in the second manner, in order to reduce the compression of the first suspension and second suspensions.