Abstract: A caterpillar scooter includes a frame, a steering mechanism, a front wheel, a rear wheel, a motor, a caterpillar system and a transmission. The steering mechanism is connected with the frame. The front wheel is connected with the steering mechanism. The rear wheel is mounted on the frame. The motor is mounted on the frame. The caterpillar system is arranged about the rear wheel for rolling on the ground. The transmission transmits power from the motor to the caterpillar system.

Abstract: A beach buggy includes a frame, a rear wheel installed on the frame, a rear engine installed on the frame and operably connected with the rear wheel, a front wheel installed on frame and a front engine installed on the front fork and operably connected with the front wheel. The beach buggy includes a seat installed on a post extending from the frame.

Abstract: A vehicle includes a frame on which are mounted a front wheel, a rear wheel, an engine, a battery-powered motor, and a transmission connecting the rear wheel with the engine and the motor. The motor can be used as a generator so as to transform motive energy produced via the engine into electric energy for storage in the battery. The engine may include a crankshaft, a pulley connected with the transmissions, and a first clutch arranged between the crankshaft and the pulley which does not transmit power therebetween until its angular speed reaches a pre-determined value. The engine includes an automatic starter connected therewith. A second clutch arranged between the automatic starter and the motor switches between a neutral position and an active position whereby the automatic starter is selectively engaged for and disengaged from operation responsive to the motor.

Abstract: A vehicle includes a frame, a front wheel mounted on the frame, a rear wheel mounted on the frame, an engine mounted on the frame, a motor mounted on the frame and a transmission connecting the rear wheel with the engine and the motor. A battery is mounted on the frame for providing energy to the motor. The motor can be used as a generator so as to transform motive energy produced via the engine into electric energy for storage in the battery. The engine may include a crankshaft, a pulley connected with the transmission and a first clutch arranged between the crankshaft and the pulley. The first clutch does not transmit power from the crankshaft to the pulley until an angular speed of the crankshaft reaches a pre-determined value. In a first aspect, the engine includes a manual starter connected therewith. In a second aspect, the engine includes an automatic starter connected therewith.

Abstract: A power transmission arrangement for kick scooter is disclosed to include a shock absorbing unit coupled between the footplate and rear wheel of the kick scooter to absorb shocks, an engine unit fixedly mounted on the footplate of the kick scooter, and a transmission unit coupled between the engine unit and the rear wheel for transmitting driving power from the engine to the rear wheel to move the kick scooter, preventing the engine from receiving shocks from the rear wheel during running of the kick scooter.