The PU CLEAR wheels by NILS EXTREME are made of polyurethane. The most important parameters of wheels are hardness and diameter. Wheel hardness determines both riding comfort and grip on the surface. PU-82A wheels provide good shock absorption and excellent adaptation to any surface. Wheel diameter has a direct impact on riding speed. Wheels with a larger diameter allow higher speeds, but do not guarantee the same manoeuvrability as wheels with a smaller diameter.
The ABEC 7 bearing is made of high-quality chrome-plated steel, ensuring excellent hardness and durability. It is characterised by the lowest rolling resistance, which translates into the highest speed according to the American standard of the Annular Bearing Engineering Committee, abbreviated as ABEC. An important parameter of this bearing is eccentricity, i.e. the roundness of the raceway in the inner ring, which is only 0.0025 mm.

Specifications:
Wheel hardness: 82A
Size: PU 84×24 mm/82A
Quantity per pack: 4 pcs
Bearing class: ABEC 7
Material: chrome-plated steel
Number of bearings per pack: 8
Number of spacers: 4
Packaging: blister
Notes:
Not intended for commercial use
24-month warranty