All Balls high-speed bearing are manufactured to ABEC-3 precision levels. Triple lip rubber seals keep the grease in and the water and dirt out. Genuine All Balls Products Chevron SRI-2 grease contains rust and oxidation inhibitors (-29 Degree Cā177 Degree C).
Good value, great quality kit contains just what you need, it was perfect fit for my 2005 R1200ST Say goodbye to noisy front bearings... A thousand miles later no issues. Beware, the two seals are different inner diameter, so be sure to install the larger one on the left.