The NILS EXTREME BLACK MATTE PU wheels are made of polyurethane. The most important parameters of the wheels are hardness and diameter. The hardness of the wheels affects both driving comfort and surface grip. The PU-82A wheels provide good shock absorption and excellent adaptation to any surface. The diameter of the wheels directly affects the speed of movement. Wheels with a larger diameter allow for higher speeds but do not guarantee the same maneuverability as wheels with a smaller diameter.

The ABEC 9 bearings, made of high-quality carbon steel, ensure excellent hardness and durability. They have the lowest rolling resistance, which translates into higher speed according to the American standard of the Annular Bearing Engineering Committee, known as ABEC. An important parameter of this bearing is eccentricity, which refers to the roundness in the inner path and measures just 0.0012mm.

• Wheel hardness: 82A
• Size: PU 76×24 mm/82A
• Package quantity: 4 pcs.
• Bearing class: ABEC 9
• Number of bearings in the package: 8
• Number of spacers: 4
• Notes: Not for commercial use