Patent ID: 7188915
Filing Date: 2007-03-13
Classification: B62D

Abstract:
1. A drive sprocket comprising: a central drive plate; a first annular ring attached to the central drive plate; a second annular ring attached to the central drive plate; a plurality of shafts are used to attach the first annular ring and the second annular ring to the central drive plate; a sprocket driver attached to one of the central drive plate, the first annular ring or the second annular ring, the central plate having an opening therein and at least one of the first annular ring and the second annular ring having an opening therein for receiving the sprocket driver; a transmission positioned within the sprocket driver, a portion of the sprocket driver positioned within the openings of the central drive plate and at least one of the first or second annular ring; and a plurality of rotatable sleeves positioned over the shaft portion between the first annular ring and the central drive plate, and over the shaft portion between the second annular ring and the central drive plate.