A frame unit for a two-wheeled vehicle may comprise a main frame. The main frame may be formed by a first partial shell and a second partial shell that is joined to the first partial shell. The first partial shell and the second partial shell may be produced from a material comprising steel. The main frame may further comprise an upper tube, a lower tube, a seat tube, and/or a head tube. A rear section may be joined to the main frame and may include a chain stay and/or a seat stay. Further, each of the first and second partial shells may form a lateral half of the main frame, and the first and second partial shells may have a C-shaped cross section. The frame unit avoids the disadvantages of the prior art and offers a high degree of design freedom.

A motorcycle body frame structure improves rigidity and further suppresses changes in vehicle body behavior. The body frame structure includes: a head pipe, right and left main frames connected to the head pipe, a down tube connected to the head pipe, right and left reinforcing frames installed between the down tube and corresponding right and left reinforcing frames. Each of the right and left reinforcing frames include a first and second joint portions joined to the down tube. The first joint portions are joined with corresponding right and left main frames. Each of the second joint portions include a first joint flange portion welded with corresponding right and left side surfaces of the down tube, a second joint flange portion welded with an upper surface of the down tube, and a third joint flange portion connected with the first and second joint flange portions and separated from the down tube.

A motorcycle body frame structure improves rigidity and further suppresses changes in vehicle body behavior. The body frame structure includes: a head pipe, right and left main frames connected to the head pipe, a down tube connected to the head pipe, right and left reinforcing frames installed between the down tube and corresponding right and left reinforcing frames. Each of the right and left reinforcing frames include a first and second joint portions joined to the down tube. The first joint portions are joined with corresponding right and left main frames. Each of the second joint portions include a first joint flange portion welded with corresponding right and left side surfaces of the down tube, a second joint flange portion welded with an upper surface of the down tube, and a third joint flange portion connected with the first and second joint flange portions and separated from the down tube.

A bike frame with a fixed bottle opener gusset is a bicycle frame with at least a crossbar, a vertical-frame bar, and a fixed bottle opener gusset fixedly and integrally located at an intersection of the crossbar and said vertical frame-bar. The design of the frame provides added strength and increased frame life with rugged service while further providing a user with a functional bottle opener that is useful for removing a cap from a bottle when the user is riding or not riding the bicycle.

A wheel mounting member having a damping structure may include a dropout in which an axle insertion groove is formed at one side of a lower portion thereof, wherein a guide slot may be formed in a predetermined direction at a predetermined distance from the axle insertion groove; a bracket in which a protrusion inserted into the guide slot is formed at a lateral surface thereof; and an elastic member that is inserted into the guide slot and elastically supports the protrusion, wherein the elastic member may absorb impact transmitted to the dropout.

This design incorporates four separate modules which are bolted together in this succession: a welded, structural single-unit steering tube/downtube module; independent, twin, front-to-rear horizontal frame rails which serve as the support for the rider to stand; a welded, structural single-unit module to mount shock absorbers and a swingarm; and, a welded swingarm. The defined space between the twin frame rails and the two adjoining modules can be modified by altering the length of the frame rails and/or using spacers between each rail and its corresponding module at the bolt-on location.

This design incorporates four separate modules which are bolted together in this succession: a welded, structural single-unit steering tube/downtube module; independent, twin, front-to-rear horizontal frame rails which serve as the support for the rider to stand; a welded, structural single-unit module to mount shock absorbers and a swingarm; and, a welded swingarm. The defined space between the twin frame rails and the two adjoining modules can be modified by altering the length of the frame rails and/or using spacers between each rail and its corresponding module at the bolt-on location.

A two-wheeled vehicle includes a frame assembly having a front end and a rear end extending along a longitudinally-extending centerline, a front ground-engaging member operably coupled to the front end of the frame assembly at a front rotational axis, and a rear ground-engaging member operably coupled to the rear end of the frame assembly at a rear rotational axis. The vehicle further includes an engine supported by the frame assembly and operably coupled to the front and rear ground-engaging members, and the engine includes a throttle body assembly. Additionally, the vehicle includes an air intake assembly fluidly coupled to the engine and including an airbox and a mounting plate having a first channel and a second channel. The first and second channels are configured to align with the throttle body assembly. The mounting plate is configured to couple the airbox to the throttle body assembly.

An inverted tube bike frame with bottle opener gusset system is a bicycle frame with the top tube and down tube having a heightened profile with concave sidewalls and a bottle opener gusset strengthening the joint between the seat tube and the top tube. The top tube has a downwardly curved design for added mechanical strength. Other tube-members of the frame have an elongated elliptical cross-section for increased strength and impact damage resistance. The wheel base is wider than that of a standard bicycle adding to forward movement stability and rider comfort. The design of the frame provides added strength and increased frame life with rugged service.

The present disclosure provides a bicycle frame formed in a tube structure by bonding a left panel and a right panel together along a length direction, where the left panel and the right panel are molded into a predetermined shape, including: a battery housing unit and a reinforcement panel having a housing unit, wherein a battery is inserted into the housing unit, and wherein edges of the reinforcement panel are bonded to the left panel and the right panel.