Bicycle sprocket assembly and bicycle rear sprocket assembly

摘要

A bicycle sprocket assembly comprises a first sprocket, a second sprocket, a first intervening member, and a second intervening member. The first sprocket includes a first sprocket body and a first chain-engagement structure. The second sprocket includes a second sprocket body and a second chain-engagement structure. The first intervening member is positioned between the first sprocket and the second sprocket in an axial direction parallel to a rotational center axis. The second intervening member is positioned between the first sprocket and the second sprocket in the axial direction. The second intervening member is provided radially outwardly from the first intervening member with respect to the rotational center axis. The second intervening member is attached to at least one of the first sprocket and the second sprocket and has an elongated shape extending along a first reference plane perpendicular to the rotational center axis.

主权项

1. A bicycle sprocket assembly having a rotational center axis, the bicycle sprocket assembly comprising:
a first sprocket including a first sprocket body and a first chain-engagement structure configured to engage with a bicycle chain, the first sprocket body having a first hub engagement profile configured to engage with a bicycle hub assembly; a second sprocket including a second sprocket body and a second chain-engagement structure configured to engage with the bicycle chain, the second sprocket body having a second hub engagement profile configured to engage with the bicycle hub assembly; a first intervening member positioned between the first sprocket and the second sprocket in an axial direction parallel to the rotational center axis; and a second intervening member positioned between the first sprocket and the second sprocket in the axial direction, the second intervening member being provided radially outwardly from the first intervening member with respect to the rotational center axis, the second intervening member being attached to at least one of the first sprocket and the second sprocket and having an elongated shape extending along a first reference plane perpendicular to the rotational center axis, the second intervening member including
a radial thickness defined in a radial direction with respect to the rotational center axis, anda circumferential length defined in a circumferential direction of the bicycle sprocket assembly, the circumferential length being longer than the radial thickness to provide the elongated shape.