Patent ID: 7721835
Filing Date: 2010-05-25
Classification: B60L,B62M

Abstract:
1. A wheel propulsion assembly for a bicycle having a steering column with a steering axis, said steering column including a handlebar descending to a front fork, said fork having a pair of opposing legs, each leg having a lower dropout; said wheel propulsion assembly comprising: (a) a suspension system having protrusions, said system being mounted on said bicycle by insertion of said protrusions in said lower dropouts, (b) said suspension system further comprising a motor driven rotatable wheel with a wheel axle located concentrically therein; wherein the rotatable wheel is driven by a hub motor; wherein said protrusions are situated along an axis spaced parallel to and non-coincident with said wheel axle, (c) said wheel axle being movable with respect to said protrusions mounted within said dropouts.