An operating system comprises a first operating device, a second operating device, a first user interface, a second user interface, and a controller. The first user interface is configured to receive a first user input. The second user interface is configured to receive a second user input. At least one of the first user interface and the second user interface is configured to be operated to control at least one electric component. The controller is configured to control the at least one electric component based on at least one of the first user input and the second user input. The at least one electric component includes at least one of a gear changing unit, a gear changing unit, an adjustable seatpost, an internal gear hub, a front suspension, a rear suspension, a cycle computer, a smartphone, a tablet computer, and a light emitting device.

The invention is a bicycle drive assembly and it generally includes a drive chain, a drive wheel including a hub, a frame including left and right chainstays, each having a raced bearing, a cassette assembly, and an axle assembly. The cassette assembly includes a body having an inner end rotatably mounted on the right chainstay bearing, an outer free end, and a cassette including a plurality of sprockets. Cooperative torque-transferring components transfer torque between cassette and body, body and axle, and axle and hub. A freewheel mechanism, as one of the cooperative torque-transferring components, allows the bicycle to coast. A drive axle is selectably movable axially between a riding position, wherein it is rotatably mounted on the chainstay bearings and supports and drives the wheel, and a release position wherein the wheel is removable.

The invention is a bicycle drive assembly and it generally includes a drive chain, a drive wheel including a hub, a frame including left and right chainstays, each having a raced bearing, a cassette assembly, and an axle assembly. The cassette assembly includes a body having an inner end rotatably mounted on the right chainstay bearing, an outer free end, and a cassette including a plurality of sprockets. Cooperative torque-transferring components transfer torque between cassette and body, body and axle, and axle and hub. A freewheel mechanism, as one of the cooperative torque-transferring components, allows the bicycle to coast. A drive axle is selectably movable axially between a riding position, wherein it is rotatably mounted on the chainstay bearings and supports and drives the wheel, and a release position wherein the wheel is removable.

A bicycle sprocket for a sprocket cassette comprises a sprocket main body which extends about a virtual sprocket axis about which the sprocket is rotatable during intended operation on a bicycle. In the case of a single release tooth being formed, a release-side stabilizing tooth is arranged in the circumferential region of extent of an upshift recess formation. The release-side stabilizing tooth has an inner tooth contact surface which has a greater axial spacing to an axial reference position than an inner tooth contact surface of the reference tooth. Additionally, or alternatively, in the case of a single catch tooth being formed, a receiving-side stabilizing tooth is arranged in the circumferential region of extent of a downshift recess formation. The receiving-side stabilizing tooth has an inner tooth contact surface which has a greater axial spacing to the axial reference position than the inner tooth contact surface of the reference tooth.

A clutch system for a torque transmission. The clutch system includes a first rotatable unit connectable to an input, including at least one first abutment surface and a second rotatable unit connectable to an output, including at least one second abutment surface arranged for selectively engaging the first abutment surface. The first and second abutment surfaces being adapted to each other so as to allow disengaging under load. The system includes a third rotatable unit arranged for selectively being in a first position or a second position relative to the second rotatable unit, wherein at least one retaining member of the third rotatable unit selectively locks the at least one second abutment surface in engagement with the at least one first abutment surface for selectively rotationally coupling the second rotatable unit to the first rotatable unit.

A sprocket support body is rotatably mounted on a hub axle of a bicycle rear hub assembly. The sprocket support body comprises at least ten external spline teeth configured to engage with a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external-spline driving surface and an external-spline non-driving surface. The at least ten external spline teeth has an external-spline major diameter equal to or smaller than 34 mm. The sprocket support body is free of external spline teeth having another external-spline major diameter that is different from the external-spline major diameter.

A sprocket support body is rotatably mounted on a hub axle of a bicycle rear hub assembly. The sprocket support body comprises at least ten external spline teeth configured to engage with a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external-spline driving surface and an external-spline non-driving surface. The at least ten external spline teeth has an external-spline major diameter equal to or smaller than 34 mm. The sprocket support body is free of external spline teeth having another external-spline major diameter that is different from the external-spline major diameter.

A system and method for a bicycle transmission. Specifically, a bicycle transmission having a housing with a first shaft passing therethrough; a set of two conical gear assemblies in opposing parallel alignment disposed within the housing, each having a plurality of different sized gears arranged in a progressive order. A first conical gear assembly is engaged about the first shaft. A second conical gear assembly engaged about a second shaft parallel to the first shaft, the second shaft structured and arranged to have at least a proximate position and a distal position relative to the first shaft. A drive belt is disposed generally normally about one of the two conical gear assemblies and passing therebetween, the drive belt engaging a gear from the first conical gear assembly with a gear from the second conical gear assembly when the second conical gear assembly is in the proximal position. At least one drive belt mover structured and arranged to move the drive belt along progressive order of gears when the second conical gear assembly is in the distal position. A transfer gear joined to an end of the second shaft. A method of use is provided as well.

A bicycle component controller is basically provided with a processor. The processor is configured to perform a gear shift control based on a sprocket assembly information of at least one sprocket assembly. The sprocket assembly information at least includes a single shifting distance and shifting gate information. The single shifting distance corresponds to an axial spacing between adjacent sprockets of the at least one sprocket assembly.

The invention discloses an automatic downshifting and variable speed transmission bicycle, comprising a bicycle stand, wherein the bicycle stand is installed with a bottom bracket; the bottom bracket is installed with a bottom bracket sprocket set, and the bottom bracket sprocket set is composed of three chain discs of different sizes; a rear axle of the bicycle is provided with a tower footing, and the tower footing is fixedly installed with a sun gear; one side of the sun gear is provided with a planet carrier, and the planet carrier is installed with planetary twin gears. The invention is easy to start, can run at high speed, has multiple functions, and is reliable in operation, with convenient maintenance and low cost, and is energy saving and environmental-friendly; it has a good market prospect and brings great convenience to cyclists.