An adaptor bar includes a retractable tube unit. Two end parts are respectively connected to two respective ends of the tube unit. Two C-shaped hooks are respectively fixed to the two ends of the tube unit. Each hook includes a first connection portion. Two plates are respectively connected to the two end parts. Each plate includes a first section, a second section and a third section. The second section is formed inclinedly between the first and third sections. The third section of each plate is fixed to the end part corresponding thereto. The first section of each plate is removably engaged with the first connection portion of the hook by sliding the end part. The first section includes a first recess and a second recess. The second recess is located close to the second section and includes a recessed reinforcement which reinforces a portion between the first and second sections.

An adaptor bar includes a retractable tube unit. Two end parts are respectively connected to two respective ends of the tube unit. Two C-shaped hooks are respectively fixed to the two ends of the tube unit. Each hook includes a first connection portion. Two plates are respectively connected to the two end parts. Each plate includes a first section, a second section and a third section. The second section is formed inclinedly between the first and third sections. The third section of each plate is fixed to the end part corresponding thereto. The first section of each plate is removably engaged with the first connection portion of the hook by sliding the end part. The first section includes a first recess and a second recess. The second recess is located close to the second section and includes a recessed reinforcement which reinforces a portion between the first and second sections.

The present invention relates generally to the field of motorcycle to trike conversions. More specifically, the present invention relates to a motorcycle to trike conversion swingarm device that is primarily comprised of a frame further comprised of a first end and a second end. The device can be used to convert a softail motorcycle into a trike and provides a more visually appealing design line to the trike after assembly. The swingarm device, in different embodiments, is designed to fit different types of axle mounts.

The present invention relates generally to the field of motorcycle to trike conversions. More specifically, the present invention relates to a motorcycle to trike conversion swingarm device that is primarily comprised of a frame further comprised of a first end and a second end. The device can be used to convert a softail motorcycle into a trike and provides a more visually appealing design line to the trike after assembly. The swingarm device, in different embodiments, is designed to fit different types of axle mounts.

A training bicycle with a removably attachable pedal unit enabling adjustment of chain slack by a simple method is provided. The detachable pedal unit is configured to enable attachable/detachable connection of a pedal crank to a bicycle body. The pedal unit includes a unit body having a unit connector for rotatably retaining and fastening to a bicycle body a pedal crank axially supporting a chain wheel. A unit receiving member fixedly installed on the bicycle body to interconnect with the unit connector. A sliding adjustment mechanism provided on the unit receiving member and the unit connector to vary and fix mutual fore-aft connection position of the unit receiving member and the unit connector in order to adjust fore-aft connection position of the bicycle detachable pedal unit relative to the bicycle body and thereby adjusting the chain tension.

A training bicycle with a removably attachable pedal unit enabling adjustment of chain slack by a simple method is provided. The detachable pedal unit is configured to enable attachable/detachable connection of a pedal crank to a bicycle body. The pedal unit includes a unit body having a unit connector for rotatably retaining and fastening to a bicycle body a pedal crank axially supporting a chain wheel. A unit receiving member fixedly installed on the bicycle body to interconnect with the unit connector. A sliding adjustment mechanism provided on the unit receiving member and the unit connector to vary and fix mutual fore-aft connection position of the unit receiving member and the unit connector in order to adjust fore-aft connection position of the bicycle detachable pedal unit relative to the bicycle body and thereby adjusting the chain tension.

A snow vehicle is disclosed comprising a vehicle frame, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit and a chain tensioning device to take up the chain tension. The chain has a chain guide positioned below a lower run of the chain which directs the chain towards an upper run of the chain.

A snow vehicle is disclosed comprising a vehicle frame, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit and a chain tensioning device to take up the chain tension. The chain has a chain guide positioned below a lower run of the chain which directs the chain towards an upper run of the chain.

A snow vehicle is disclosed comprising a vehicle frame, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit and a chain tensioning device to take up the chain tension. The chain has a chain guide positioned below a lower run of the chain which directs the chain towards an upper run of the chain.

A snow vehicle is disclosed comprising a vehicle frame, a propulsion unit coupled to the frame, and a front ski steered by a steering mechanism. The snow vehicle has a chain coupling the sprocket of the propulsion unit and a chain tensioning device to take up the chain tension. The chain has a chain guide positioned below a lower run of the chain which directs the chain towards an upper run of the chain.