Patent ID: 8794651

Claim:
A bicycle comprising: a frame and at least one wheel attached to the frame; the frame further comprising a receiver; a first planetary gear transmission disposed in the receiver, the first planetary gear transmission comprising; an input member ( 100 ) connected to a ring gear ( 400 ); the ring gear ( 400 ) comprising a ring gear (R 1 ) and a ring gear (R 2 ), ring gear ( 400 ) in meshing engagement to a pinion gear (P 1 ); pinion gear (P 1 ) and a pinion gear (P 2 ) journalled to a first carrier shaft ( 201 ), a first carrier ( 200 ) engaged with a first brake (brake 1 ), a one-way clutch (CL 1 ) disposed between the first carrier ( 200 ) and the ring gear ( 400 ); a pinion gear (P 2 ) in meshing engagement with a ring gear (R 3 ); a ring gear (R 3 ) connected to a second carrier ( 300 ); a third pinion (P 3 ) and a fourth pinion (P 4 ) journalled to the second carrier ( 300 ); the third pinion (P 3 ) in meshing engagement with a ring gear (R 4 ), ring gear (R 4 ) engaged with a second brake (brake 2 ), a second one-way clutch (CL 2 ) disposed between the ring gear (R 4 ) and the ring gear (R 3 ); the fourth pinion (P 4 ) in meshing engagement with an output sprocket (S 3 ); the wheel having a hub; a second planetary gear transmission disposed in the hub; and a belt for transmitting a torque trained between the first planetary gear transmission output sprocket and the second planetary gear transmission.