A bicycle-mounted holder including a pedestal, a supporting plate, two movable arms and a buckle, where the bottom of the pedestal is equipped with two pins which are parallel to each other; the supporting plate is fixed on the pedestal through a screw and is capable of swinging to different regulating angles as required; the two movable arms are located on the two pins respectively and are capable of rotating around the respective pins; the tail end of each of the two movable arms is provided with an arc surface which is curled outwards; each of the two movable arms is provided with an inward arc surface matching the bottom of the supporting plate and capable of being stretched outwards and contracted for clamping an article; and the buckle is simultaneously buckled on the arc surfaces of the two movable arms.

A water amusement and hydration bicycle can include a bicycle frame and a container to contain water carried by the bicycle frame, the container having an outlet port and a multipurpose port. The bicycle can also include an amusement nozzle removably coupled to the outlet port. The bicycle can further include a drinking nozzle removably coupleable to the multipurpose port. The bicycle can still further include a water pump carried by the bicycle frame and operable to pump the water from the container through the outlet port for delivery to the amusement nozzle. In addition, the bicycle can include a gas pump operable to pressurize gas in the container to move the water from the container through the multipurpose port for delivery to the drinking nozzle when the drinking nozzle is coupled to the multipurpose port. The multipurpose port can be coupleable to a water source to provide water to the container.

A tarp deploying apparatus includes breakaway connector between a radial arm assembly and a tarp roller. The breakaway connector is designed to fracture, or otherwise come apart, to prevent damaging stress from being applied to the tarp roller by the radial arm assembly. Therefore, if a rear flap of a rear-dump trailer on which the radial arm assembly is mounted is dislodged from the tub of the trailer, the breakaway connect will permit separation of the radial arm assembly from the tarp roller without damaging the radial arm assembly or the tarp roller.