FIELD: transport engineering; bicycles propelled by hands and feet of rider. SUBSTANCE: all-wheel-drive bicycle has frame, saddle, rear wheel with foot pedal-and-chain drive, front wheel with hand lever-and-chain drive, steering fork. Frame has ring-shape portion enclosing front wheel drive mechanism installed on extension steering fork. EFFECT: improved convenience and facilitated control and putting of all wheel drive bicycle into motion. 3 cl, 5 dwg
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