Adjustable height or dropper seatpost

An adjustable height or dropper seatpost for a bicycle including:

• an upper, in use, tube, the upper end or head of the upper tube being designed to house or engage or belong to seat clamps or connector for connecting the seatpost to a bicycle seat,
• a lower, in use, tube, with the upper tube being slidingly mounted in the lower tube along a longitudinal axis between a retracted position, in which the length of the seatpost is minimum and an extended position, in which the length of the seatpost is maximum,
• the upper end of said lower tube or a component integral or mounted thereon defining a shoulder protruding inwardly, whereas said seatpost comprises at least one abutment component integral with the upper tube and designed to abut against said shoulder when said upper tube and said lower tube are mutually displaced so as to bring them to the extended position,
• wherein said upper tube delimits at least one slot or recessed portion and said abutment component comprises at least one slat or key or rod firmly and removably fitted or fittable or inserted or insertable in a respective slot or recessed portion and designed to protrude outwardly from the latter for abutting against said shoulder as soon as said upper tube and said lower tube are mutually brought to said extended position, the position and/or arrangement of said at least one slat or key or rod in said slot or recessed portion being adjustable, so that it is possible to change the extended position and, in turn, the maximum length of the seatpost, and
• wherein said at least one slot or recessed portion has a depth of about 0.5 and 3 mm, whereas said at least one slat or key or rod has a thickness greater of about 0.5-3 mm than the slot or recessed portion, so that the slat or key or rod can be partly received in the slot or recessed portion and partly protrude from the latter.

An adjustable height or dropper seatpost for a bicycle including:

• an upper, in use, tube, the upper end or head of the upper tube being designed to house or engage or belong to seat clamps or connector for connecting the seatpost to a bicycle seat,
• a lower, in use, tube, with the upper tube being slidingly mounted in the lower tube along a longitudinal axis between a retracted position, in which the length of the seatpost is minimum and an extended position, in which the length of the seatpost is maximum,
• the upper end of said lower tube or a component integral or mounted thereon defining a shoulder protruding inwardly, whereas said seatpost comprises at least one abutment component integral with the upper tube and designed to abut against said shoulder when said upper tube and said lower tube are mutually displaced so as to bring them to the extended position,
• wherein said upper tube delimits at least one slot or recessed portion and said abutment component comprises at least one slat or key or rod firmly and removably fitted or fittable or inserted or insertable in a respective slot or recessed portion and designed to protrude outwardly from the latter for abutting against said shoulder as soon as said upper tube and said lower tube are mutually brought to said extended position, the position and/or arrangement of said at least one slat or key or rod in said slot or recessed portion being adjustable, so that it is possible to change the extended position and, in turn, the maximum length of the seatpost, and
• further comprising an actuator mounted inside said upper and lower tubes and designed to displace said upper tube among said retracted and said extended position.

An adjustable height or dropper seatpost for a bicycle including:

• an upper, in use, tube, the upper end or head of the upper tube being designed to house or engage or belong to seat clamps or connector for connecting the seatpost to a bicycle seat,
• a lower, in use, tube, with the upper tube being slidingly mounted in the lower tube along a longitudinal axis between a retracted position, in which the length of the seatpost is minimum and an extended position, in which the length of the seatpost is maximum,
• the upper end of said lower tube or a component integral or mounted thereon defining a shoulder protruding inwardly, whereas said seatpost comprises at least one abutment component integral with the upper tube and designed to abut against said shoulder when said upper tube and said lower tube are mutually displaced so as to bring them to the extended position,
• wherein said upper tube delimits at least one slot or recessed portion and said abutment component comprises at least one slat or key or rod firmly and removably fitted or fittable or inserted or insertable in a respective slot or recessed portion and designed to protrude outwardly from the latter for abutting against said shoulder as soon as said upper tube and said lower tube are mutually brought to said extended position, the position and/or arrangement of said at least one slat or key or rod in said slot or recessed portion being adjustable, so that it is possible to change the extended position and, in turn, the maximum length of the seatpost, and
• wherein said upper tube delimits two slots or recessed portions extending on parts opposite to one another of the upper tube, with two slats or keys or rods each inserted or fitted in a respective slot or recessed portion.