A bicycle retractable bicycle cross bar adaptor includes a bar having a first tube, a second tube and a control unit. The first tube has a first connection end and the second tube has a second connection end. The control unit includes a first part and a second part. The first part includes a head on the first end thereof, outer threads formed to the outer surface of the first part, and multiple plates extending from the second end of the first parts. The second connection end is slidably inserted into the first connection end in the first part. The second part is rotatably and movably mounted to the first part to press the plates to clamp the second tube to secure the second tube, or to release the plates so that the second tube is movable relative to the first tube.

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.

An electric tricycle with a tricycle frame, at least two pedals, and an electric motor. The tricycle frame has a steering assembly with handlebars and a front wheel and a rear wheel assembly with two rear wheels mounted on a rear axle. The pedals are rotatably coupled to the rear wheel assembly. The pedals have an engaged configuration where the pedals are engaged with the rear axle and a disengaged configuration where the pedals are disengaged from the rear axles. The electric motor is mounted on the rear wheel assembly and is electrically coupled to a battery. The electric motor is configured to engage with the rear axle when the pedals are in the disengaged configuration. The electric motor may have a forward clutch to rotate the rear axle in a first direction and a reverse clutch to rotate the rear axle in a second direction opposite the first direction.

A saddle-ride type vehicle in which a rear frame and a rear suspension can be attached to a vehicle body frame with a small number of parts and with a simple structure. The saddle-ride type vehicle includes a rear frame fastened to a frame portion of a rear portion of a vehicle body frame, and a rear suspension disposed at a rear portion of the vehicle body frame. The vehicle body frame includes a tubular member inserted into the frame portion in a vehicle width direction and fixed to the frame portion. The rear frame is fastened by a frame fastener to a frame fixation portion provided at an inner end portion of the tubular member in the vehicle width direction, and the rear suspension is connected to a suspension connecting portion provided at an outer end portion of the tubular member in the vehicle width direction.

A saddle-ride type vehicle in which a rear frame and a rear suspension can be attached to a vehicle body frame with a small number of parts and with a simple structure. The saddle-ride type vehicle includes a rear frame fastened to a frame portion of a rear portion of a vehicle body frame, and a rear suspension disposed at a rear portion of the vehicle body frame. The vehicle body frame includes a tubular member inserted into the frame portion in a vehicle width direction and fixed to the frame portion. The rear frame is fastened by a frame fastener to a frame fixation portion provided at an inner end portion of the tubular member in the vehicle width direction, and the rear suspension is connected to a suspension connecting portion provided at an outer end portion of the tubular member in the vehicle width direction.

A rod piece connection device, comprising: a first connection piece and a second connection piece. The first connection piece includes a first rod piece connection end and a first joggle joint end opposite to the first rod piece connection end. Wherein, the first joggle joint end includes a protrusion head tongue portion and a neck portion. The second connection piece includes a second rod piece connection end and a second joggle joint end opposite to the second rod piece connection end. The second joggle joint end is located corresponding to the first joggle joint end for them to form into a joggle joint. The second joggle joint end includes a protrusion bottom groove portion and a pillow portion. Wherein the protrusion head tongue portion is disposed corresponding into the protrusion bottom groove portion, and the neck portion is located corresponding to the pillow portion.

An electric tricycle including a frame having a front end coupled to a steering assembly, the steering assembly having a front wheel, and a rear end coupled to a rear wheel assembly, the rear wheel assembly having two rear wheels. At least two pedals rotatably coupled to the rear wheel assembly and configured to move in a reciprocating motion, the at least two pedals having an engaged configuration wherein the at least two pedals are engaged with the two rear wheels and configured to rotate the two rear wheels in a first direction, and a disengaged configuration wherein each of the at least two pedals is disengaged from the two rear wheels and aligned with another of the at least two pedals. An electric motor electrically coupled to a battery and configured to engage with the two rear wheels and to rotate the two rear wheels in the first direction.

An electric mobility apparatus is disclosed. The electric mobility apparatus may include a steering assembly including a handlebar manipulated by a user and a support shaft having one side coupled to the handlebar, a mid-frame assembly including a user boarding part formed on an upper end, a front frame assembly having one side coupled to the support shaft and the other side on which a first connector having at least a portion fastened to one side of the mid-frame assembly is formed, and a tail frame assembly including a second connector of which at least a portion is fastened to the other side of the mid-frame assembly.

An electric mobility apparatus is disclosed. The electric mobility apparatus may include a steering assembly including a handlebar manipulated by a user and a support shaft having one side coupled to the handlebar, a mid-frame assembly including a user boarding part formed on an upper end, a front frame assembly having one side coupled to the support shaft and the other side on which a first connector having at least a portion fastened to one side of the mid-frame assembly is formed, and a tail frame assembly including a second connector of which at least a portion is fastened to the other side of the mid-frame assembly.