Abstract: The present invention provides a compound, system, and method for retrofitting and converting standard bicycle rims and tires having tube to be tubeless. Standard tube tires are retrofitted by installing either rim tape or a rim strip with integral valve stem around the inner channel of the rim, mounting the first bead of the tire, injecting a liquid sealing compound into the tire cavity, finishing mounting the tire, inflating and installing the tire on a bicycle. The sealing compound may additionally contain propylene glycol or an aggregate material to encourage the sealing of the tires as punctures occur when the tire system is placed into use.

Abstract: A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. A distal point of the sidewall extends no further than 0.200 in above the shelf of the distal surface of the rim. The sidewall height is on the order of 2 millimeters less than the sidewall height of a conventional bicycle wheel rim providing approximately 4 mm more tire surface exposure. The inner profile of the sidewall has substantially the same profile shape as the bead of the tire producing a ‘ball-and-socket’ type fit that helps to reduce strain on the tire bead while creating a tighter air seal.

Abstract: The present invention provides a compound, system, and method for retrofitting and converting standard bicycle rims and tires having tube to be tubeless. Standard tube tires are retrofitted by installing either rim tape or a rim strip with integral valve stem around the inner channel of the rim, mounting the first bead of the tire, injecting a liquid sealing compound into the tire cavity, finishing mounting the tire, inflating and installing the tire on a bicycle. The sealing compound may additionally contain propylene glycol or an aggregate material to encourage the sealing of the tires as punctures occur when the tire system is placed into use.

Abstract: The present invention provides a compound, system, and method for retrofitting and converting standard bicycle rims and tires having tubes to be tubeless. Standard tube tires are retrofitted by installing either rim tape or a rim strip with integral valve stem around the inner channel of the rim, mounting the first bead of the tire, injecting a liquid sealing compound into the tire cavity, finishing mounting the tire, inflating, and installing the tire on a bicycle. The sealing compound may additionally contain propylene glycol or an aggregate material to encourage the sealing of the tires as punctures occur when the tire system is placed into use.

Abstract: The present invention provides a compound, system, and method for retrofitting and converting standard bicycle rims and tires having tubes to be tubeless. Standard tube tires are retrofitted by installing either rim tape or a rim strip with integral valve stem around the inner channel of the rim, mounting the first bead of the tire, injecting a liquid sealing compound into the tire cavity, finishing mounting the tire, inflating, and installing the tire on a bicycle. The sealing compound may additionally contain propylene glycol or an aggregate material to encourage the sealing of the tires as punctures occur when the tire system is placed into use.

Abstract: Apparatus for automatically charging a transponder mounted to a go-cart. The transponder charging unit is basically comprised of a housing having a wall which divides its space into first and second compartments wherein a PC board and a transponder are at least partially contained, respectively. A cover plate secures and protects the PC board and transponder within the housing. A wire is spliced into the go-cart's coil grounding wire to extract A/C power therefrom and send it to the PC board. The PC board contains several solid state devices to rectify and regulate the voltage. Wires extend from the PC board's output to charging contacts operatively connected to the transponder's battery, thereby providing a charge thereto. Thus, the transponder's battery, is continually being charged while the go-cart's engine is running.