A dropper seatpost assembly is disclosed. The dropper seatpost assembly includes a lower post and an upper post configured to telescopically move with respect to the lower post. The dropper seatpost assembly also includes a translating mechanism configured to maintain an orientation such as a lateral orientation, a rotational orientation, or both a lateral orientation and a rotational orientation of the upper post with respect to the lower post as the upper post telescopically moves with respect to the lower post, the translating mechanism comprising two or more vertically offset features.