A bicycle seat height adjusting assembly comprising:
- an insert tube sized to be slidably receivable within a seat tube of a bicycle type apparatus, said insert tube having an inner wall and an exterior wall, said insert tube further having a lower area and an upper area;
- an axially slidable seat post positionable to different heights within said insert tube and adapted to support a bicycle seat at a top portion of said seat post;
- means for preventing said seat post from rotating relative to said insert tube;
- said seat post being substantially tubular in shape with an open bottom end, said seat post having an upper section and a lower section, said seat post having a seat post inner wall and a seat post outer wall, said seat post having an inner area within said seat post inner walls;
- a main spring positioned substantially within said insert tube and extending up into said seat post, said main spring urging said seat post in an upward direction;
- a plurality of locking holes formed longitudinally along a first side of said insert tube;
- a first longitudinal groove formed along said inner wall of said insert tube, said first longitudinal grove being set in generally corresponding alignment with said plurality of locking holes;
- a seat post locking pin and supplemental lock spring substantially positioned within said lower section of said seat post, said locking pin being sized and aligned to engage said locking holes, said locking pin having an outer end portion and an inner end portion, said locking pin having a locking dog portion located substantially at said outer end portion of said locking pin;
- a first spline rod with a plurality of wedging projections, said first spline rod with wedging projections containing said first spline rod from which each of said wedging projections protrude, said first spline rod with wedging projections being slidably positioned within said first longitudinal groove, said first spline rod with wedging projections having a total depth substantially equal to the total depth of said first longitudinal groove, each of said wedging projections being positioned in corresponding relation to each of said locking holes;
- an actuation lever being operably connected to said first spline rod with wedging projections, wherein pulling of said actuation lever moves each of said wedging projections into each said locking hole, wherein one of said wedging projections pushes said locking pin out of one of said locking holes, wherein said wedging projections are all equally drawn into each corresponding said locking hole, to fully limit said locking pin from entering into any of said locking holes and therefore allow said seat post to rise upwardly;
- a return spring means for urging said first spline rod with wedging projections in a return direction, wherein releasing of said actuation lever allows said firstspline rod with wedging projections to be urged in a return direction and cause said wedging projections to substantially withdraw from said locking holes, thereby allowing said supplemental lock spring to urge said locking dog portion back into any one of said locking holes, to thereby set said locking dog portion into a locked position, to thereby relock said seat post at a given height, whereby the height of the seat is adjusted when said first spline rod with wedging projections is moved to thereby push said locking pin out of one of said locking holes and said seat post is placed into a selected position by a cyclist's buttocks between said locked position;
- a maximum height set means, whereby the operator is able to limit said seat post from rising beyond an exact, personally set, optimum height.