D.I.D's new DirtStar rims are designed for world class Supercross, Motocross and Enduro Racing. For Enduro and Desert Racers, where strength is mandatory, the ST-X is 15% stronger than the LT-X but only a fraction heavier. The ST-X is available in black only. The rims utilize the special "7 series" aluminum. Whether you're competing in world class Motocross where shaving off grams while maintaining the optimum balance between weight and strength is your desire or you're pounding through severe terrain where strength makes the difference between winning and a DNF, D.I.D has a DirtStar model that is designed to Win Races.