Patent ID: 7033294

Claim:
A bicycle rear derailleur guard assembly for use with a bicycle having a derailleur mounted to a frame of the bicycle by a derailleur mounting bolt defining a tool cavity, said derailleur guard assembly comprising: a body supportable by an axle assembly of the bicycle, said body being configured to extend from an axis of the axle assembly to a space adjacent the derailleur mounting bolt and defining an inner surface facing the frame when said derailleur guard assembly is mounted to the bicycle; a support extending from said inner surface, said support being configured to engage the tool cavity of the derailleur mounting bolt when said derailleur guard assembly is mounted to the bicycle; wherein said support and the derailleur mounting bolt cooperate to create a support beam for the derailleur, said support beam being rigidly supported by the frame at a first end and rigidly supported by the body at a second end; and wherein said support comprises a hexagonal-shaped cross-section configured to cooperate with a hexagonal-shaped cross-section of the tool cavity.