Press-On Rubber Lug Tire 21 x 7 x 15 – RT-239100

Measuring 21 inches in overall diameter on a 7 inch width and sized to a 15 inch wheel, this press-on rubber tire mounts by being pressed onto its wheel rather than bolted or bead-seated, the standard mounting for the drive and load positions on electric lift trucks and other cushion-tire material handling equipment. Solid rubber through and through, it cannot go flat, which is the reason this style is run indoors and on hard, debris-strewn floors where a pneumatic tire would puncture.

The lug tread is the working feature here: molded bars break up the contact patch to bite for traction and to clear debris, where a smooth tire would slip or pack up on a wet or littered floor. As the rubber wears down toward the wear line the tread shallows and the ride grows harder, the signal a press-on tire has reached the end of its service life.

Because a press-on tire is defined by its three dimensions, match the 21 by 7 by 15 sizing to the wheel and the position it serves, since the pressed fit and the loaded diameter both depend on getting those numbers right.