Trek Bicycle Corporation

Michael L Zeigle

Weston M Wilcox

Matthew A Rhoades

Chad Lockart

Aaron Mock

David Hayes

Andre Terzaghi

A metal and fiber reinforced plastic composite combines a welded metal tube spine with a reinforced plastic composite seat assembly, top tube and seat stays.

Metal and reinforced plastic composite bicycle frame

Road bicycle frame with unified rear triangle

A suspension for a bicycle having a unified rear triangle pivotably connected to a Y shaped frame. The unified rear triangle provides a fixed chain length, isolating rear wheel movement from pedaling motion. A shock absorbing means is connected to the Y shaped frame at the intersection of the arms of the frame and to the rear triangle. A pivot is preferably connected near the bottom bracket of the bicycle in order to reduce movement of the bottom bracket.

Suspension for a bicycle having a Y shaped frame

Bicycle frame

Growing community of inventors

Sun Prairie, WI, United States of America

Michael L Zeigle