Patent ID: 7344463
Filing Date: 2008-03-18
Classification: B62M

Abstract:
1. A sprocket assembly including at least three sprockets having different tooth counts, the sprocket assembly comprising: a sprocket carrier including a hub ring having an internal profile for transmitting torque, a plurality of carrier arms radially extending from the hub ring, the carrier arms having a first receiving surface and a second receiving surface opposite the first receiving surface; first and second sprockets including first and second plurality of mounting holes, respectively, for mounting to the first and second receiving surfaces, respectively, the carrier arms including a third plurality of mounting holes aligned with the first and second plurality of mounting holes of the first and second sprockets, the first and second sprockets mounted to the carrier arms by a common fastening element; and a third sprocket arranged between the first and second sprockets, one of the first and second sprockets including a fourth plurality of mounting holes for mounting the third sprocket to one of the first and second sprockets.