Patent ID: 6964424

Claim:
A drive system suitable for use in a bicycle, the drive system including a manually-operable member and a drive train connected to the manually-operable member for transferring drive from the manually-operable member to at least one of the bicycle wheels, wherein the manually-operable member is mounted for substantially rectilinear reciprocating movement on a lever system that includes a first lever having a first end connected to a first pivot and a second end rotatable about the first pivot, a second lever having a first end pivotably connected to the second end of the first lever and a second end to which the manually-operable member is attached, and a tie rod having a first end pivotably connected to a second pivot and a second end pivotably connected to the second lever between the first and second ends thereof; wherein the first lever is constructed and arranged for limited reciprocating rotation of the second end about the first pivot.