A bicycle sprocket comprising:
- a sprocket body including a radially outer periphery provided about a rotational center axis of the bicycle sprocket;
- and
- a plurality of chain-driving teeth provided on the radially outer periphery to engage with a bicycle chain, the plurality of chain-driving teeth comprising:
- a first tooth having a first maximum chain-engaging width defined in an axial direction parallel to the rotational center axis, the first tooth including a first radially outermost end radially farthest from the radially outer periphery of the sprocket body, the first tooth having a first radial length radially defined from a reference line to the first radially outermost end;
- and
- a second tooth having a second chain-engaging maximum width defined in the axial direction, the first maximum chain-engaging width being larger than an inner link space defined between an opposed pair of inner link plates of the bicycle chain and smaller than an outer link space defined between an opposed pair of outer link plates of the bicycle chain, the second chain-engaging maximum width being smaller than the inner link space, the second tooth including a second radially outermost end radially farthest from the radially outer periphery of the sprocket body, the second tooth having a second radial length radially defined from the reference line to the second radially outermost end, the second radial length being in a range of 1.5 mm to 2.9 mm,
- the second tooth including
- a circumferential center plane radially extending from the rotational center axis through a center point of a reference line, the reference line being defined to connect centers of pins of the bicycle chain engaged with the plurality of chain-driving teeth,
- a downstream circumferential surface facing in a driving rotational direction in which the bicycle sprocket rotates about the rotational center axis during pedaling, the downstream circumferential surface being disposed on a downstream side of the circumferential center plane in the driving rotational direction, and
- a shortest distance defined between the downstream circumferential surface and a first intersection point of the circumferential center plane and an additional reference line, the shortest distance being equal to or larger than 2 0 mm, the additional reference line being defined at a reference position radially outward spaced apart from the reference line by 1.5 mm.