Patent ID: 8919478
Filing Date: 2014-12-30
Classification: B62K,B62M

Abstract:
1. A bicycle drive unit comprising: a first bottom bracket configured to be coupled to a first axial end of a bottom bracket shell of a bicycle; a crank axle rotatably supported by the first bottom bracket with respect to a rotational axis, the crank axle having a first end portion and a second end portion; and a first motor including a first casing non-rotatably coupled to the crank axle, a second casing non-rotatably coupled to the bottom bracket shell, a first rotor having a first magnet disposed on the first casing, and a first stator non-rotatably coupled to the first bottom bracket, the first magnet and the first stator radially facing with each other with respect to the rotational axis of the crank axle.