Bicycle sprocket and bicycle crank assembly

A bicycle sprocket comprising:

• a sprocket body;
• a plurality of sprocket teeth circumferentially arranged on an outer periphery of the sprocket body, the plurality of sprocket teeth including
• at least one first tooth arranged on the outer periphery to be received within an outer link space defined between a pair of outer link plates of a bicycle chain, and
• at least one second tooth arranged on the outer periphery to be received within an inner link space defined between a pair of inner link plates of the bicycle chain;
• and
• at least one chain-supporting portion arranged on the sprocket body to face the bicycle chain in an axial direction parallel to a rotational center axis of the bicycle sprocket without being received within the outer link space and the inner link space in a state where the plurality of sprocket teeth engages with the bicycle chain, the at least one chain-supporting portion being spaced apart from the at least one of at least one first tooth and the at least one second tooth in the axial direction, wherein
• a radial length of the at least one chain-supporting portion is larger than a radial length of the at least one of the at least one first tooth and the at least one second tooth.

A bicycle sprocket comprising:

• a sprocket body;
• a plurality of sprocket teeth circumferentially arranged on an outer periphery of the sprocket body, the plurality of sprocket teeth including
• at least one first tooth arranged on the outer periphery to be received within an outer link space defined between a pair of outer link plates of a bicycle chain, and
• at least one second tooth arranged on the outer periphery to be received within an inner link space defined between a pair of inner link plates of the bicycle chain;
• and
• at least one chain-supporting portion arranged on the sprocket body to face the bicycle chain in an axial direction parallel to a rotational center axis of the bicycle sprocket without being received within the outer link space and the inner link space in a state where the plurality of sprocket teeth engages with the bicycle chain, the at least one chain-supporting portion being spaced apart from the at least one of at least one first tooth and the at least one second tooth in the axial direction, wherein
• the at least one first tooth has a first maximum axial width defined in the axial direction, and
• the at least one second tooth has a second maximum axial width defined in the axial direction, the second maximum axial width being equal to the first maximum axial width.

A bicycle sprocket comprising:

• a sprocket body;
• a plurality of sprocket teeth circumferentially arranged on an outer periphery of the sprocket body, the plurality of sprocket teeth including
• at least one first tooth arranged on the outer periphery to be received within an outer link space defined between a pair of outer link plates of a bicycle chain, and
• at least one second tooth arranged on the outer periphery to be received within an inner link space defined between a pair of inner link plates of the bicycle chain;
• and
• at least one chain-supporting portion arranged on the sprocket body to face the bicycle chain in an axial direction parallel to a rotational center axis of the bicycle sprocket without being received within the outer link space and the inner link space in a state where the plurality of sprocket teeth engages with the bicycle chain, the at least one chain-supporting portion being spaced apart from the at least one of at least one first tooth and the at least one second tooth in the axial direction, wherein
• the sprocket body includes
• a first axial surface,
• a second axial surface opposite to the first axial surface in the axial direction, and
• a reference axial center plane defined at a center between the first axial surface and the second axial surface in the axial direction, and
• the at least one second tooth is disposed on the reference axial center plane.

A bicycle sprocket comprising:

• a sprocket body;
• a plurality of sprocket teeth circumferentially arranged on an outer periphery of the sprocket body, at least one of the plurality of sprocket teeth having a tooth-tip center plane and a tooth-bottom center plane, the tooth-tip center plane being offset from the tooth-bottom center plane in an axial direction parallel to a rotational center axis of the bicycle sprocket, the at least one of the plurality of sprocket teeth being arranged on the outer periphery to be received within a link-plate space defined between a pair of link plates of a bicycle chain;
• and
• at least one chain-supporting portion spaced apart from the plurality of sprocket teeth in the axial direction without being received within the link-plate space of the bicycle chain in a state where the plurality of the sprocket teeth engages with the bicycle chain.

A bicycle sprocket comprising:

• a sprocket body;
• a plurality of sprocket teeth circumferentially arranged on an outer periphery of the sprocket body, at least one of the plurality of sprocket teeth being arranged on the outer periphery to be received within a link-plate space defined between a pair of link plates of a bicycle chain;
• and
• at least one chain-supporting portion spaced apart from the plurality of sprocket teeth in the axial direction without being received within the link-plate space of the bicycle chain, a radial length of the at least one chain-supporting portion being larger than a radial length of at least one of the plurality of sprocket teeth.