Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.

Abstract: An elongated structural member is provided, which in a specific embodiment includes an outer thin-walled shell, with at least one elongated strut member and at least one planar rib member having an outer peripheral surface disposed within the shell in a plane which is substantially perpendicular to the longitudinal axis of the shell, a first portion of the outer periopheral surface of the at least one rib member contacting the inner surface of the shell and a second portion of the outer peripheral surface of the at least one rib member contacting the at least one strut member.

Abstract: A bicycle frame of efficient aerodynamic shaping including a main frame structure and fork assembly that employ an integral tension shell, strut and rib design, and integrated construction and assembly techniques, in which the structural components include a lightweight thin integral tension outer shell and lightweight thin inner integral tension struts and ribs arranged to use primarily their high tensile, and shear, but also lesser compression characteristics in combination to produce a very strong, aerodynamic, lightweight, and flex resistant bicycle.

Abstract: A low frontal area, aerodynamic drag reducing and adjustable mounting device and bicycle saddle including, an integral saddle or interchangable saddle and fastening mechanism, and a horizontally running open rectangular shaped tube with an over sleeve, the rectangular tube and over sleeve having vertical and horizontal grooves respectively with common fasteners, that allow vertical, horizontal, and inclination adjustments and that are fastened to a bicycle frame.

Abstract: Disclosed herein are various embodiments, including but not limited to a bicycle that includes, among other features, an elongated down tube and a single elongated seat tube, the longitudinal axis of the seat tube intersecting the longitudinal axis of the down tube at a location substantially intermediate between the first and second ends of the down tube, wherein the distance between the spaced apart side outer surfaces of each of the down tube and the seat tube are less than the distance between the upper and lower outer surfaces of each of the down tube and seat tube; additionally including a seat tube, a seat tube sleeve, a crank assembly and a bottom bracket sleeve for mounting the crank assembly, wherein the seat tube sleeve has an upper end, a lower end, and a longitudinal axis extending from the upper end to the lower end; the seat tube being disposed within the seat tube sleeve, the longitudinal axis of the seat tube sleeve intersecting the bottom bracket sleeve.