In some embodiments, an electric scooter comprises a deck configured to support a rider, front and rear wheels, a handlebar assembly that includes a handlebar, a left handle, and a right handle, a steering column that includes a steering tube and the handlebar assembly, and an electric motor configured to provide mechanical power to at least one of the front and the rear wheels. One or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to be detachable and comprise one or more rechargeable battery packs. In addition, one or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to receive one or more removable rechargeable batteries.

The disclosure relates to the field of cycle technologies, and particularly to a wheel and a cycle. The wheel comprises a rim, a tire covering an outer periphery face of the rim, and a friction power device sandwiched between the rim and the tire; wherein the friction power device can produce a frictional current when pressed by the rim and/or the tire.

A motorcycle includes a main frame, a seat frame connected to a rear portion of the main frame and extending backward to support a seat, an auxiliary frame reinforcing the seat frame, and an acceleration sensor. The acceleration sensor is supported at a position under the seat frame and above the auxiliary frame in a side view by a bracket extending from the seat frame or the auxiliary frame. Side surfaces of the acceleration sensor are covered with a vehicle body cover.

A hybrid leisure vehicle equipped with an electric motor and an engine includes: an accelerator sensor that detects an operation amount of an accelerator operation member operated by a user; a controller that includes a processor and a memory and that controls the electric motor and the engine based on a detection signal of the accelerator sensor; and a selection input device connected to the controller and operated by the user. The memory stores a plurality of mode programs each of which specifies how to change states of the electric motor and the engine depending on vehicle-related parameters. The processor selects a mode program from the plurality of mode programs in response to an input provided by the user to the selection input device, and controls the electric motor and the engine according to the selected mode program.

A hybrid leisure vehicle equipped with an electric motor and an engine includes: an accelerator sensor that detects an operation amount of an accelerator operation member operated by a user; a controller that includes a processor and a memory and that controls the electric motor and the engine based on a detection signal of the accelerator sensor; and a selection input device connected to the controller and operated by the user. The memory stores a plurality of mode programs each of which specifies how to change states of the electric motor and the engine depending on vehicle-related parameters. The processor selects a mode program from the plurality of mode programs in response to an input provided by the user to the selection input device, and controls the electric motor and the engine according to the selected mode program.

In some embodiments, a scooter comprises a deck configured to support a rider, a front wheel and a rear wheel, a head tube, a steering column, and a foot brake. The steering column can include a steering tube and a handlebar assembly, and the steering column can be used to steer the scooter by controlling a direction of the front wheel. The foot brake can be configured to apply a braking force to the rear wheel when the foot brake is pressed down. A plurality of neck members can connect the deck to the head tube.

A motorcycle includes a main frame, a seat frame connected to a rear portion of the main frame and extending backward to support a seat, an auxiliary frame reinforcing the seat frame, and an acceleration sensor. The acceleration sensor is supported at a position under the seat frame and above the auxiliary frame in a side view by a bracket extending from the seat frame or the auxiliary frame. Side surfaces of the acceleration sensor are covered with a vehicle body cover.

In some embodiments, an electric scooter comprises a deck configured to support a rider, front and rear wheels, a handlebar assembly that includes a handlebar, a left handle, and a right handle, a steering column that includes a steering tube and the handlebar assembly, and an electric motor configured to provide mechanical power to at least one of the front and the rear wheels. One or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to be detachable and comprise one or more rechargeable battery packs. In addition, one or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to receive one or more removable rechargeable batteries.

In some embodiments, an electric scooter comprises a deck configured to support a rider, front and rear wheels, a handlebar assembly that includes a handlebar, a left handle, and a right handle, a steering column that includes a steering tube and the handlebar assembly, and an electric motor configured to provide mechanical power to at least one of the front and the rear wheels. One or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to be detachable and comprise one or more rechargeable battery packs. In addition, one or more of the steering column, steering tube, handlebar assembly, handlebar, left handle, right handle, and deck can be configured to receive one or more removable rechargeable batteries.

A bicycle battery pack that can be reduced in volume includes a housing configured to be located on a frame of a bicycle and battery cells accommodated in the housing. The battery cells include at least a first battery cell and a second battery cell. The housing includes a side wall extending in a longitudinal direction of the frame in a state located on the frame. An outer portion of the side wall includes at least one groove. The at least one groove is recessed toward a region between the first battery cell and the second battery cell.