A dropper seatpost assembly is disclosed. The dropper seatpost assembly includes a lower post comprising a travel adjustment bore and an upper post configured to interactively operate with respect to the lower post. The dropper seatpost assembly also includes a translating assembly configured to maintain one or both of an axial orientation and a rotational orientation of the upper post with respect to the lower post and at least one travel adjustment spacer removably coupled with the travel adjustment bore, the at least one travel adjustment spacer to interact with the translating assembly to reduce a maximum travel distance of the interactive operation of the upper post with respect to the lower post.

A dropper seatpost assembly is disclosed. The dropper seatpost assembly includes a lower post comprising a travel adjustment bore and an upper post configured to interactively operate with respect to the lower post. The dropper seatpost assembly also includes a translating assembly configured to maintain one or both of an axial orientation and a rotational orientation of the upper post with respect to the lower post and at least one travel adjustment spacer removably coupled with the travel adjustment bore, the at least one travel adjustment spacer to interact with the translating assembly to reduce a maximum travel distance of the interactive operation of the upper post with respect to the lower post.

A vibration isolator can be configured to provide improved vibration isolation performance, such as in connection with a bicycle saddle. The bicycle saddle can be operatively connected to a bicycle frame. The vibration isolator can be located within a portion of the bicycle frame. The vibration isolator can be operatively positioned with respect to the bicycle saddle. The vibration isolator being configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile can include a region of quasi-zero stiffness. The vibration isolator including a plurality of spring members arranged in a stack.

A vibration isolator cartridge can be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile including a region of quasi-zero stiffness. The vibration isolator cartridge can include a housing. The vibration isolator cartridge can include a plunger. The plunger can be configured to be depressed toward a distal end portion of the housing. The vibration isolator cartridge can include a plurality of spring members operatively positioned within the housing between the plunger and the distal end portion of the housing. The plurality of spring elements can be arranged in a stack. The vibration isolator cartridge can be used to provide improved vibration isolation performance in various applications, such as a bicycle saddle.

A seat post assembly includes a seat post that is electrically adjustable in height. The adjustability may be based on one or more pressures sensed by one or more sensors within the seat post assembly, respectively. The disclosed seat post assembly includes an electronics module. The electronics module may be carried under the seat or saddle and may include a pressure sensor or pressure sensor circuitry.

A seat post assembly includes a seat post that is electrically adjustable in height. The adjustability may be based on one or more pressures sensed by one or more sensors within the seat post assembly, respectively. The disclosed seat post assembly includes an electronics module. The electronics module may be carried under the seat or saddle and may include a pressure sensor or pressure sensor circuitry.

An actuation device for a human-powered vehicle comprises a base member, a movable member, and an actuator. The movable member is movably provided on the base member. The actuator is configured to be actuated by stimulation including at least one of electric stimulation and heat stimulation so as to move the movable member relative to the base member in a first direction by pulling the movable member.

An actuation device for a human-powered vehicle comprises a base member, a movable member, and an actuator. The movable member is movably provided on the base member. The actuator is configured to be actuated by stimulation including at least one of electric stimulation and heat stimulation so as to move the movable member relative to the base member in a first direction by pulling the movable member.

A bicycle frame includes a front triangle comprising a head tube and a bottom bracket shell, a tension bar comprising a first end and a second end, wherein the first end of the tension bar is pivotably connected to an upper portion of a telescoping seat post assembly, and a first fore pivot assembly at a first reach point. The first reach point is between a reach point of the bottom bracket shell and a reach point of the head tube. The first fore pivot assembly is pivotably connected to the second end of the tension bar. The frame further includes an aft pivot assembly at a second reach point, wherein the second reach point is closer to the reach point of the bottom bracket shell than the first reach point, and wherein the aft pivot assembly is pivotably connected to a lower portion of the telescoping seat post assembly.

A bicycle frame includes a front triangle comprising a head tube and a bottom bracket shell, a tension bar comprising a first end and a second end, wherein the first end of the tension bar is pivotably connected to an upper portion of a telescoping seat post assembly, and a first fore pivot assembly at a first reach point. The first reach point is between a reach point of the bottom bracket shell and a reach point of the head tube. The first fore pivot assembly is pivotably connected to the second end of the tension bar. The frame further includes an aft pivot assembly at a second reach point, wherein the second reach point is closer to the reach point of the bottom bracket shell than the first reach point, and wherein the aft pivot assembly is pivotably connected to a lower portion of the telescoping seat post assembly.