Patent ID: 6962544
Filing Date: 2005-11-08
Classification: B62M

Abstract:
1. A front derailleur for a bicycle comprising: a fixed member having a mounting portion configured to be coupled to a frame portion of the bicycle, said fixed member including a first mounting flange and a second mounting flange axially spaced from said first mounting flange; a chain guide having a chain receiving slot to shift a chain of the bicycle in a transverse direction; and a linkage assembly coupled between said chain guide and said fixed member to move said chain guide between a retracted position and an extended position; said linkage assembly including said first and second mounting flanges having different axial widths, as measured along said second pivot axis, said axial width of said first mounting flange being at least about five times thicker than said axial width of said second mounting flange with said first mounting flange being at least partially aligned with said first link in a direction perpendicular to said first and second pivot axes.