Patent ID: 8905491

Claim:
A bicycle rim comprising: a first circumferential side wall made at least partially of a binder material, and having a radial inner end and a radial outer end; a second circumferential side wall made at least partially of the binder material, and having a radial inner end and a radial outer end; and an outer bridge made at least partially of the binder material and connecting the radial outer ends between the first and second circumferential side walls, at least one of the first and second circumferential side walls including a first portion of a non-resin material with a first thermal conductivity and a second portion comprising a thermally conductive layer of a non-resin material with a second thermal conductivity higher than the first thermal conductivity of the first portion, the second portion being configured to extend from a brake contact area of the at least one of the first and second circumferential side walls to at least a radial middle of the at least one of the first and second circumferential side walls with respect to a rotational center axis of the bicycle rim, the first portion and the second portion being covered by the binder material such that an outer surface of the bicycle rim is made of the binder material at least at a portion corresponding to the at least one of the first and second circumferential side walls in which the first portion and the second portion are included, the second portion extending more than half in a circumferential direction along the at least one of the first and second circumferential side walls, with the first and second portions at least partially overlapping in a thickness direction of the at least one of the first and second circumferential side walls, the second portion being configured such that the thermally conductive layer does not extend into the outer bridge.