Bicycle rim

A bicycle rim comprising:

• an annular metallic rim member including a plurality of spoke attachment areas with a spoke attachment opening in each of the spoke attachment areas;
• and
• a reinforcing member extending circumferentially about the annular metallic rim member to overlie the spoke attachment areas of the annular metallic rim member,
• the reinforcing member including a plurality of spoke attachment sections overlying the spoke attachment areas, respectively, and a plurality of intermediate sections disposed between adjacent pairs of the spoke attachment sections, with the spoke attachment sections being thicker than the intermediate sections,
• the reinforcing member including a reinforcing resin material that extends continuously in a circumferential direction about an entire circumferential area of the annular metallic rim member, the reinforcing resin material including an annular continuous circumferential part defining at least a portion of the spoke attachment sections and the intermediate sections of the reinforcing member,
• the annular continuous circumferential part being formed of at least two individual reinforcing layers bonded together, and each of the spoke attachment sections including at least two individual discrete reinforcing layers bonded together over the annular continuous circumferential part at circumferentially spaced apart locations,
• the individual discrete reinforcing layers of each spoke attachment section being separate and spaced from the individual discrete reinforcing layers of the remaining spoke attachment sections to form a plurality of circumferential spaces between the individual discrete reinforcing layers of the spoke attachment sections externally of the reinforcing layers of the annular continuous circumferential part.

A bicycle rim comprising:

• an annular metallic rim member including a plurality of spoke attachment areas with a spoke attachment opening in each of the spoke attachment areas;
• and
• a reinforcing member extending circumferentially about the annular metallic rim member to overlie the spoke attachment areas of the annular metallic rim member,
• the reinforcing member including a plurality of spoke attachment sections overlying the spoke attachment areas, respectively, and a plurality of intermediate sections disposed between adjacent pairs of the spoke attachment sections, with the spoke attachment sections being thicker than the intermediate sections,
• each spoke attachment section including a reinforcing resin material having at least one carbon impregnated layer with ring shaped fibers that are annularly arranged around a corresponding one of the spoke attachment openings,
• the ring shaped fibers of each carbon impregnated layer encircling a center axis of the corresponding one of the spoke attachment openings being as viewed along the center axis of the corresponding one of the spoke attachment openings.

A bicycle rim forming method comprising:

• forming an annular metallic rim member having a pair of oppositely facing annular braking surfaces;
• and
• applying a reinforcing member extending circumferentially about the annular metallic rim member to overlie a plurality of spoke attachment areas of the annular metallic rim member such that the reinforcing member includes a plurality of spoke attachment sections overlying the spoke attachment areas, respectively, and a plurality of intermediate sections disposed between adjacent pairs of the spoke attachment sections, with the spoke attachment sections being thicker than the intermediate sections,
• the reinforcing member being applied to the annular metallic rim so as not to overlie at least one of the annular braking surfaces.

A bicycle rim comprising:

• an annular metallic rim member including a plurality of circumferentially spaced spoke attachment areas with a spoke attachment opening formed in each of the spoke attachment areas;
• and
• a reinforcing member extending circumferentially about the annular metallic rim member to overlie the spoke attachment areas of the annular metallic rim member,
• the reinforcing member including a plurality of spoke attachment sections overlying the spoke attachment areas, respectively, and a plurality of intermediate sections disposed between adjacent pairs of the spoke attachment sections, with the spoke attachment sections being thicker than the intermediate sections,
• each of the spoke attachment sections including at least two differently sized discrete layers that are separate from the remaining spoke attachment sections and circumferentially spaced from the remaining spoke attachment sections.