Telescopic bicycle seatpost with adjustable height and fixed frame insertion

A telescopic, height adjustable, bicycle seatpost with a fixed frame insertion length, but adjustable uncompressed resting height is described herein. This telescopic bicycle seatpost with adjustable height and fixed frame insertion provides a unique structure and method for setting the uncompressed resting height of a telescopic bicycle seatpost, while using a fixed insertion length into the bicycle frame. The assembly allows a single telescopic bicycle seatpost to fit on many different sizes of bicycle, for cyclists of varied height and leg length, while maximizing the telescoping length of the seatpost for each situation, without requiring various lengths of seatpost to be manufactured. Instead, the telescoping length of the seatpost may be adjusted for cyclists of different height, allowing for one seatpost to fit many size frames and cyclists, while allowing each individual to maximize the telescoping length for their particular setup.