Experience improved performance with our new line of Ceramic Wheel Bearings! Boasting 40% less friction than steel, these bearings provide maximum horsepower thanks to their reduced friction. In addition, they have a 60% lower rotating weight and a 3-5 times longer bearing life compared to steel. Say goodbye to excess vibration and overheating, as these bearings come in a compact size of 35mm OD x 17mm ID x 10mm LG. Sold individually.