| 摘要 |
A bicycle rear sprocket assembly has a sprocket carrier, a first sprocket, a second sprocket and a third sprocket. The first and second sprockets are attached to opposite axial sides of the outer end portion of the attachment member of the sprocket carrier using a common fastener that extends through the first and second attachment portions and the outer end portion of the attachment member. The third sprocket is disposed on adjacent the second sprocket. The second sprocket has a free edge spaced radially inwardly from the common fastener by a distance at least as large as one-half of a maximum transverse dimension of the fastener measured in a direction perpendicular to the rotation axis. At least one space maintaining projection extends axially toward an adjacent one of the second and third sprockets.
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