ZETA and DRC products are distributed over 50 countries now. They ride dirt bikes. They develop products for dirt bikes. They test, manufacture and supply high quality products for dirt bike riders. One stand works for truing, balancing wheels and checking bearings. Durable frame provides stability for accurate wheel truing and balancing. Accepts rim widths up to 5.0 inches, rim sizes up to 23 inches. Foldable design. Note: Use on wheels with bearing inner diameter of more than 15 mm. Optional shaft set is required for bearing diameters less than 15 mm.