A bicycle mounting mechanism and battery box assembly installed in a bicycle frame of a bicycle is provided to include a battery box and a mounting mechanism. The battery box includes an abutment recess and an opening. The mounting mechanism includes a grip and a locating component unit being connected to the bicycle frame and defining therein an accommodation chamber for accommodating the battery box. The grip is pivotally connected to the locating component unit and includes an abutment end portion and a push end portion. The abutment end portion is capable of inserting into the accommodation chamber and in engagement with the opening with a rotating of the grip. The push end portion is capable of inserting into the accommodation chamber and abuts against the abutment recess with a further rotating of the grip.

A rotation locking device includes a locking module and at least one engaging member. The at least one engaging member is rotatably coupled to the locking module. The locking module is configured to engaging and disengage the at least one engaging member, thereby refraining the at least one engaging member from rotating relative to the locking module.

A rotation locking device includes a locking module and at least one engaging member. The at least one engaging member is rotatably coupled to the locking module. The locking module is configured to engaging and disengage the at least one engaging member, thereby refraining the at least one engaging member from rotating relative to the locking module.

A distance determination method has: detecting a first received signal strength indicator (RSSI) of a first electronic device by a second electronic device; detecting a second RSSI of the second electronic device by the first electronic device; obtaining the first RSSI from the second electronic device by the first electronic device; and calculating a motion direction and a distance of the second electronic device relative to the first electronic device according to the first RSSI and the second RSSI by the first electronic device.

Electric bicycles having partially integrated batteries, as well as down tubes that accommodate such batteries, controllers, and other components, are described. Further, controller mount components and wiring harnesses are also described. Thus, in some embodiments, an electric bicycle includes various devices or components that facilitate easy and efficient mounting of electrical components (e.g., batteries, controllers, cables and/or wires, and so on) to or within frame components of the electric bicycle.

Electric bicycles having partially integrated batteries, as well as down tubes that accommodate such batteries, controllers, and other components, are described. Further, controller mount components and wiring harnesses are also described. Thus, in some embodiments, an electric bicycle includes various devices or components that facilitate easy and efficient mounting of electrical components (e.g., batteries, controllers, cables and/or wires, and so on) to or within frame components of the electric bicycle.

A removable display assembly for a bicycle includes: a housing having a body that extends along a first direction from a first end to a second end, wherein the body further extends along a second direction that is transverse to the first direction, such that at least a portion of the body can be positioned through an opening in a wall of a first tube of a bicycle frame to be at least partially positioned within an internal cavity of the first tube, wherein the opening extends along the first direction from a first end to a second end, a display coupled to the body of the housing; a first transverse spring coupled to the first end of the housing; a second transverse spring coupled to the second end of the housing; and a third spring coupled to the second end of the housing.

A removable display assembly for a bicycle includes: a housing having a body that extends along a first direction from a first end to a second end, wherein the body further extends along a second direction that is transverse to the first direction, such that at least a portion of the body can be positioned through an opening in a wall of a first tube of a bicycle frame to be at least partially positioned within an internal cavity of the first tube, wherein the opening extends along the first direction from a first end to a second end, a display coupled to the body of the housing; a first transverse spring coupled to the first end of the housing; a second transverse spring coupled to the second end of the housing; and a third spring coupled to the second end of the housing.

A motorcycle fairing includes a fairing body having a mounting surface for mounting an audio speaker. The fairing body defines an internal space for accommodating a portion of the speaker. The fairing includes an external wall portion. An internal wall is configured, along with the external wall portion, to seal the internal space. An upper portion defines an inboard portion and an outboard portion. An upper surface of the inboard portion is positioned below an upper surface of the outboard portion. An edge is defined by the upper surface of the outboard portion. The upper surface slopes downward on each side of the edge. The edge extends in an inboard-to-outboard direction in a forward-to-rearward direction. In some configurations, the inboard portion defines an airfoil shape.

The invention discloses a foldable bicycle and electric bicycle frame, comprising a girder and a rear fork, wherein the girder and the rear fork are connected to a rotating shaft through a bearing; both sides of the girder are provided with fixing holes A, and the girder is connected to the upper part of a hinge through the fixing holes A; the lower part of the hinge is provided with fixing holes B, and the hinge is connected to the upper part of a shock absorber through the fixing holes B; the lower part of the shock absorber is connected to the rear fork through a fixing hole C; both ends of the rear fork are provided with end covers. The invention has a simple structure. The invention can be used for folding bicycles and electric bicycles.