Matter is the leading brand of the speed wheel, it is thanks to its team of the best specialists involved in the design of the wheels, as well as its patented polyurethane, which makes the most powerful wheels; Super Juice is the best seller of the brand, a wheel used for years by the greatest speed champions. What makes the difference, is the quality of its rubber, a high speed rubber, with an unequaled bounce equal hardness and excellent resistance to abrasion. The core Hollow Core is the trademark of the American brand, a two-part core that allows great rigidity and control over the wheel with a lightness. The most versatile speed wheel. The F1, yellow labeling (hardness 86 a), fast wheels speed priority.The F2, labeled red (hardness 84 a), very versatile, good grip and speed. The F3, labeled green (hard.
