Patent ID: 7217208

Claim:
A bicycle chain comprising: a plurality of inner plate pairs and each pair of the inner plates having two first holes defined through a first end and a second end thereof; a plurality of outer plate pairs and each pair of the outer plates having two second holes defined through a first end and a second end thereof; each pair of the outer plates connected at the first and second ends thereof to two pairs of the inner plates respectively; the second holes of the first end of each pair of the outer plates being in alignment with the first holes of the first end of one of the pairs of the inner plates, the second holes of the second end of each pair of the outer plates being in alignment with the first holes of the second end of another pair of the inner plates; each pair of the inner plates having two connectors connected to the first holes in the first and second ends thereof; each connector having a central passage defined axially therethrough, and each connector having a rivet extending therethrough and two ends of each of the rivets connected with the second holes at each of the first and second ends of each pair of the outer plates; wherein each rivet has a protrusion extending radially outward from the outer periphery thereof and the protrusion is in contact with the inner periphery of the central passage of the connector corresponding thereto; and wherein the protrusion includes a plurality of bosses which are in contact with the inner periphery of the central passage of the connector corresponding thereto.