Patent ID: 11884364
Assignee: THE CYCLE GROUP
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A rear derailleur assembly for mounting to a bicycle, wherein the bicycle includes a frame, comprising:
an upper body portion configured to operationally engage the rear derailleur assembly to the frame;
a controller portion pivotally connected to the upper body;
a lower body portion pivotally connected to the upper body and pivotally connected to the controller portion; and
a chain cage assembly;
wherein the chain cage assembly includes at least two pulleys configured to engage a chain of the bicycle, and a one-piece chain cage configured to retain each pulley at a particular fixed position;
wherein each pulley is rotatable relative to the one-piece chain cage at the particular fixed position of the pulley; and
wherein the lower body portion is operationally connected to the one-piece chain cage and configured to allow the one-piece chain cage to pivot relative to the lower body portion; and wherein the one-piece chain cage includes at least one hollow.