PU wheels matte NILS EXTREME made from polyurethane. The most important parameters of the wheels are hardness and diameter. The hardness of the wheels affects riding comfort and grip on the surface. PU-82A wheels provide good shock absorption and excellent adaptation to any surface. The diameter of the wheels directly influences riding speed. Wheels with larger diameters allow higher speeds but do not guarantee the same maneuverability as smaller diameter wheels. The ABEC 9 bearings are highly precise steel bearings made from high-quality steel. They are characterized by the lowest rolling resistance, which translates into higher speed according to the standard of the American Society of Mechanical Engineers known as ABEC. An important parameter of these bearings is their sphericity, meaning the circularity of the inner race, which is only 0.0012 mm.

• Wheel hardness: 82A
• Size: PU 84x24 mm/82A
• Package quantity: 4 pcs
• Bearings class: ABEC 9
• Material: steel
• Number of bearings in the package: 8