Nils Extreme PESPORT Roller Blade Wheels with Bearings ABEC9 4 Pack Indoor/Outdoor Roller Skate Wheels - 82A - 70 x 24 Matt White

✔️ Large set - 4 Nils Extreme wheels and 8 bearings included in the set. So you can replace all wheels if necessary or have spare parts ready. ✔️ High-quality workmanship - The Nils Extreme PU wheels are made of polyurethane. The rubber ensures good grip when driving on different surfaces. This material is classically used for ice skating ✔️ Hardness 82A - The roller skate wheels are wear-resistant and robust, thanks to the excellent PU. This hardness provides excellent cushioning and adapts to any surface. They are suitable for both indoor and outdoor use. They are suitable for everyday training and leisure activities ✔️ ABEC9 bearings - Made of high-quality carbon steel, which has excellent hardness and strength. The Roller Blade wheels are characterised by the lowest rolling resistance that falls down in the American standard Annular Bearing Engineering Committee, abbreviated ABEC, at the highest speed. An important parameter of this bearing is the eccentricity, i.e. the roundness on the track in the inner ring, which is only 0.0012 mm ✔️ Dimensions: 70 x 24 mm. The size of the wheels has a direct influence on the running speed of the roller blades. Larger wheels allow higher speeds when rolling, smaller wheels are more sensitive to manoeuvres