A cover for a bottom bracket of a bicycle, including a rounded body having an inner side, an outer side opposite the inner side, and a central aperture. The inner side has a surface configured to contact an outer surface of a bottom bracket shell of the bicycle and the central aperture extends through the body from the inner side to the outer side. The cover further includes a first fastener and an engaging element. The first fastener extends through the central aperture, and the engaging element is configured to prevent rotation of the rounded body by engaging the bottom bracket shell of the bicycle.

A cover for a bottom bracket of a bicycle, including a rounded body having an inner side, an outer side opposite the inner side, and a central aperture. The inner side has a surface configured to contact an outer surface of a bottom bracket shell of the bicycle and the central aperture extends through the body from the inner side to the outer side. The cover further includes a first fastener and an engaging element. The first fastener extends through the central aperture, and the engaging element is configured to prevent rotation of the rounded body by engaging the bottom bracket shell of the bicycle.

Connecting straps for use for example in sports activities and methods of attaching the connecting straps. Embodiments of the connecting straps include integral features for providing a variety of secure connections that are quick and easy to make and to disconnect, while also being lightweight and providing an elegant appearance.

Narrow vehicles have multiple advantages but tend to have a limited application because they are roll unstable. The use of flywheels to increase their stability is a known method but the operation range, complexity, performance and cost usually limit the application of these vehicles. Stability and agility enhancement system and method enabling the application of stabilizing forces from flywheels and the steering of the trajectory concurrently and cooperatively with the driver's steering and assistance enable the benefit of reduced cost and complexity while providing enhanced performances, intuitive control, safety and operation range.

Narrow vehicles have multiple advantages but tend to have a limited application because they are roll unstable. The use of flywheels to increase their stability is a known method but the operation range, complexity, performance and cost usually limit the application of these vehicles. Stability and agility enhancement system and method enabling the application of stabilizing forces from flywheels and the steering of the trajectory concurrently and cooperatively with the driver's steering and assistance enable the benefit of reduced cost and complexity while providing enhanced performances, intuitive control, safety and operation range.

A bicycle includes a vehicle-body frame, a front wheel that is a steered wheel, a rear wheel, a crankshaft, a pedal, a transmission to transmit rotation of the pedal to the rear wheel, a motor to apply at least a torque to cause rearward rotation of at least one of the front wheel or the rear wheel, a roll detector to detect at least one of a roll angle or a roll angular velocity of the vehicle-body frame, and a steering detector to detect a direction of steering. When a vehicle speed is zero and a steering angle of the front wheel is not zero, the motor applies, to the at least one of the front wheel or the rear wheel, a torque to maintain the roll angle of the vehicle-body frame based on the detected direction of steering and the at least one of the roll angle or the roll angular velocity.

A bicycle includes a vehicle-body frame, a front wheel that is a steered wheel, a rear wheel, a crankshaft, a pedal, a transmission to transmit rotation of the pedal to the rear wheel, a motor to apply at least a torque to cause rearward rotation of at least one of the front wheel or the rear wheel, a roll detector to detect at least one of a roll angle or a roll angular velocity of the vehicle-body frame, and a steering detector to detect a direction of steering. When a vehicle speed is zero and a steering angle of the front wheel is not zero, the motor applies, to the at least one of the front wheel or the rear wheel, a torque to maintain the roll angle of the vehicle-body frame based on the detected direction of steering and the at least one of the roll angle or the roll angular velocity.

A stabilizing apparatus for stabilizing a motorcycle or like vehicle during operation includes a first mounting bracket and a second mounting bracket. The first and second mounting brackets are configured to fixedly mount to a rear wheel frame of the motorcycle on opposite sides of the motorcycle from each other, and each of the first and second mounting brackets comprises a rigid material. A first wheel first wheel is rotatably coupled to the first mounting bracket, and a second wheel is rotatably coupled to the second mounting bracket. The first and second wheels are configured to be translationally fixed with respect to a rear wheel of the motorcycle when the first and second mounting brackets are mounted to the rear wheel frame.

A stabilizing apparatus for stabilizing a motorcycle or like vehicle during operation includes a first mounting bracket and a second mounting bracket. The first and second mounting brackets are configured to fixedly mount to a rear wheel frame of the motorcycle on opposite sides of the motorcycle from each other, and each of the first and second mounting brackets comprises a rigid material. A first wheel first wheel is rotatably coupled to the first mounting bracket, and a second wheel is rotatably coupled to the second mounting bracket. The first and second wheels are configured to be translationally fixed with respect to a rear wheel of the motorcycle when the first and second mounting brackets are mounted to the rear wheel frame.

A pedal unit attachable/detachable training bicycle that easily attach/detach a chain and a pedal unit to/from a training bicycle that has a seat stay. The pedal unit attachable/detachable training bicycle includes a bicycle frame having a receiving member provided at bottom of a seat tube to connect a pedal unit. The pedal unit, which is configured to detachably attach to the receiving member. A chain threaded between the pedal unit and a rear wheel. The bicycle frame is configured to enable a seat stay on side of the chain wheel to be freely attached to and detached from the bicycle frame.