Bicycle Power System

A bicycle power system comprising:

• an axle for securement to a vehicle, the axle having a central axle axis extending therethrough;
• a wheel hub rotatable about the central axle axis and having a hub shell interconnected with a wheel rim, the hub shell comprising:
• a shell side wall rotatably coupled to the axle;
• a shell top wall forming in part, a ring gear including inner ring gear teeth positioned circumferentially and extending inward towards the axle;
• and
• a shell cover having a cover wall radially extending from a cylindrical stator carrier;
• and
• a hub motor situated in the hub shell, the hub motor comprising:
• a rotor having a plurality of magnets secured circumferentially therein and a stator cavity, wherein the rotor rotates about the axle;
• a ring-shaped stator situated in the stator cavity and having an outer surface and an inner surface, wherein the outer surface is adjacent to the plurality of magnets and the inner surface is secured to the stator carrier, such that the stator rotates about the axle with the shell cover;
• a planetary gear set housed inside the hub shell and having a plurality of planetary gears coupled at least indirectly to the axle, wherein the plurality of planetary gears are rotationally engaged with the ring gear;
• and
• a sun gear secured to or formed integrally with the rotor, and engaged with the plurality of planetary gears, such that rotation of the rotor translates to rotation of the shell cover.