Patent ID: 8136828
Filing Date: 2012-03-20
Classification: B62K

Abstract:
1. A bicycle frame, comprising: a chain stay frame member supporting a rear bicycle wheel; a bottom bracket frame member supporting bicycle pedals; a head tube frame member supporting a steerable front fork mounted in the head tube, wherein the head tube is mounted at a head tube angle in the range of about 64° to 72° from the horizontal; an adjustable stem positioned at the top of the head tube, supporting handlebars having a rise and range of handle bar angle adjustment; a straight, curved or angled seat tube frame member for adjustably supporting a saddle at a range of saddle heights wherein the top of the seat tube is a fixed distance rearward of the bottom bracket, wherein the seat tube angle is about 62° to 72° from the horizontal, and wherein the seat tube axis as extended from a saddle insertion point, intersects the chain stay or a horn at a distance of at or within a radius of a circle of revolution of the pedals; one or more interconnecting tube frame members interconnecting the head tube, seat tube and chain stay frame members and the bottom bracket.