A method of evaluating a driving skill executed by a computer includes a skill evaluation step of evaluating a driver's driving skill based on a detection value of a vehicle state, a component separating step of separating the detection value of the vehicle state into a driver's operation component reflecting a driver's motion and a non-driver's operation component without reflecting the driver's motion, and a skill evaluation modifying step of correcting or abandoning evaluation of the driving skill based on at least one of an amount of the driver's operation component and an amount of the non-driver's operation component.

A method of evaluating a driving skill executed by a computer includes a skill evaluation step of evaluating a driver's driving skill based on a detection value of a vehicle state, a component separating step of separating the detection value of the vehicle state into a driver's operation component reflecting a driver's motion and a non-driver's operation component without reflecting the driver's motion, and a skill evaluation modifying step of correcting or abandoning evaluation of the driving skill based on at least one of an amount of the driver's operation component and an amount of the non-driver's operation component.

Methods of teaching and learning bicycle riding skills are disclosed, including training a student to ride a bicycle comprising positioning a student on a bicycle at the top of an inclined surface with a slope in a range of 8 to 15 degrees and a distance of at least 30 feet, wherein the student straddles the bicycle's seat such that the student's feet engage the inclined surface and the student's hands engage the bicycle's hand brakes. The student releases the brakes and lifts his/her feet from the inclined surface. Under angular momentum, the bicycle moves down the inclined surface while the student steers the bicycle. The bicycle is returned to the top of the inclined surface and the steps are repeated. The student also learns to pedal the bicycle using the inclined surface with similar repeatable steps. Other skills such as starting the bicycle with the pedals are taught.

Methods of teaching and learning bicycle riding skills are disclosed, including training a student to ride a bicycle comprising positioning a student on a bicycle at the top of an inclined surface with a slope in a range of 8 to 15 degrees and a distance of at least 30 feet, wherein the student straddles the bicycle's seat such that the student's feet engage the inclined surface and the student's hands engage the bicycle's hand brakes. The student releases the brakes and lifts his/her feet from the inclined surface. Under angular momentum, the bicycle moves down the inclined surface while the student steers the bicycle. The bicycle is returned to the top of the inclined surface and the steps are repeated. The student also learns to pedal the bicycle using the inclined surface with similar repeatable steps. Other skills such as starting the bicycle with the pedals are taught.

An apparatus which is helpful in teaching a person how to ride a bicycle. The apparatus is connected to a bicycle and has balance rods extending from the apparatus. The apparatus increases the ability of the new rider to balance. The balance rods can be adjusted by changing the length the balance rods are extended, where the length of extension is decreased to reduce the effect of the apparatus as the new rider learning to ride the bicycle becomes more proficient.

An apparatus which is helpful in teaching a person how to ride a bicycle. The apparatus is connected to a bicycle and has balance rods extending from the apparatus. The apparatus increases the ability of the new rider to balance. The balance rods can be adjusted by changing the length the balance rods are extended, where the length of extension is decreased to reduce the effect of the apparatus as the new rider learning to ride the bicycle becomes more proficient.

A bicycle training aid device comprising a cantilevered handle member extending outwardly away from the bicycle and disposed laterally adjacent to the rear wheel using at least two clamping members. The clamping members may compress and extend to accommodate a range of different bicycles and to thereafter lock into place using at least two locking pins. The bicycle training aid device allows a second person, generally positioned to the rider's side or rear, to hold the bicycle steady by maneuvering the cantilevered handle member, thereby helping the person riding the bicycle maintain the proper balance needed for a smooth and continuous ride. In this way, the bicycle training aid also grants the second person a more effortless and accessible point of contact during use.

A bicycle training aid device comprising a cantilevered handle member extending outwardly away from the bicycle and disposed laterally adjacent to the rear wheel using at least two clamping members. The clamping members may compress and extend to accommodate a range of different bicycles and to thereafter lock into place using at least two locking pins. The bicycle training aid device allows a second person, generally positioned to the rider's side or rear, to hold the bicycle steady by maneuvering the cantilevered handle member, thereby helping the person riding the bicycle maintain the proper balance needed for a smooth and continuous ride. In this way, the bicycle training aid also grants the second person a more effortless and accessible point of contact during use.

The present disclosure is directed to lean angle indication for motorcycles. The disclosure provides a motorcycle lean angle indication device that is operationally configured to be attached to a motorcycle and contact a surface that a motorcycle is traveling upon when the motorcycle realizes a target lean angle when executing a turning maneuver.

A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. In both such first and second modes, the frame of the tricycle is configured to rotatably support the rear wheels and configured to support the head tube at a distance from the rear wheels such that a distance between the head tube and rear wheels need not necessarily be changed even when the front wheel axis location is changed from one mode to another.