A dual, internal, pneumatic, boltless beadlock assembly for effectively securing a tire to a rim is disclosed. A pneumatic beadlock assembly is disposed inside a tire and mounted on a rim. A pneumatic beadlock assembly exerts a force on the two circumferential inner beads of a tire such that the tire stays in secure contact with the rim, even when the inflation pressure of the tire is not sufficient to lock the tire to the rim.

A running set comprising: a tire (10) comprising two beads (20); a mounting rim (500) of which the width is greater than or equal to 55% and less than or equal to 80% of the maximum axial width of the tire inflated to its service pressure; and at least one adapter (100) which provides the connection between the mounting rim and a bead of the tire.

A rim for a tire for means of displacement preferably for heavy loads at low-speed. The rim may include a main tubular body having a cylindrical surface extending between two lateral edges, a bead-seat having a greater diameter than the cylindrical surface of the tubular body and overlapped to it and at least a side-ring being overlapped to one of the lateral edges for the lateral containment of the tire. The rim may include compensating means interposed between the cylindrical surface of the tubular body and the bead-seat and in contact with them to realise a compensation in thickness.

A vehicle wheel including a wheel rim having first and second sidewalls defining a rim trough and an opening extending through a portion of the wheel rim, a tire having a tire bead positioned in the rim trough in engagement with the first sidewall, and a bead lock positioned in the rim trough adjacent the tire bead. The bead lock is movable between a locked position and an unlocked position. The bead lock includes an actuator positioned in the opening with a portion accessible from outside the rim, and a hand positioned in the rim trough with two free ends moveable relative to each other and a side edge engaged with the tire bead. The side edge includes a cut out that creates a recessed edge that is not engaged with the tire bead.

A vehicle wheel comprising a wheel rim having first and second sidewalls defining a rim trough and an opening extending through a portion of the wheel rim, a tire having a tire bead positioned in the rim trough in engagement with the first sidewall, and a bead lock positioned in the rim trough adjacent the tire bead. The bead lock is movable between a locked position and an unlocked position. The bead lock includes an actuator positioned in the opening with a portion accessible from outside the rim, and a band positioned in the rim trough with two free ends movable relative to each other and a side edge engaged with the tire bead. The side edge includes a cut out that creates a recessed edge that is not engaged with the tire bead.

A system. The system includes a wheel, a tire and a bead lock assembly. The wheel defines an axis of rotation and includes an outboard wheel flange and an inboard wheel flange. The tire is mounted on the wheel, and the tire and the wheel cooperate to define a tire cavity. The bead lock assembly is within the tire cavity, and has a radially outermost surface which is a first distance from the axis of rotation. At least one of the outboard and inboard wheel flanges has a radially outermost surface which is a second distance from the axis of rotation. The first distance is greater than the second distance.

Tire, comprising an annular massive tire body having an essentially round or oval cross section having a centre M.sub.B, and having an outer circumference Co forming a tread and an inner circumference Ci facing the centre of the annular body, the body containing a longitudinal pull cable channel, the channel containing a pull cable and having a cross section having a centre M.sub.K, wherein the distance between M.sub.K and the inner circumference Ci is between 7 and 18 mm measured along a line connecting M.sub.K and M.sub.B and structure comprising the tire mounted around a wheel rim.

A wheel is provided that combines the principles of a beadlock wheel and a liner wheel for improved performance in motor racing, in particular drag racing. The wheel has beadlock rings that fasten to inner and outer rims of the wheel to secure an outer tire, and the wheel has knurls interior to the inner and outer rims to secure an inner tire. Projections from the inner and outer rims are arranged to accommodate the various functions of the combination of the beadlock rings and the inner tire. The projections counterintuitively add weight to the wheel, yet the combination of beadlock rings and an inner tire results in improved stability and safety as well as faster times on the racetrack.