This replacement bearing kit includes high quality, durable and long lasting Enduro MAX suspension bearings to keep your mountain bike performing at its best!This complete set of replacement frame bearings is compatible with the BMC Fourstroke Not all bearings are created equal. That's why all of our pivot bearing kits proudly contain genuine Enduro bearings, which feature:Grade 10 Balls - made from highest quality 52100 chromium steel.Deep-groove Races - are hardened to Rockwell HRC 64 through heat and cryogenic treatment where the material is chilled to minus 310º Fahrenheit (-190º C) to normalize the steel’s crystalline structure and promote longer bearing life.LLU Seals - full-contact, double-lip, labyrinth (LLU) seals made from nitrile rubber for maximum protection against the elements.Waterproof Grease - the same grease used by Caterpillar and heavy equipment manufacturers.MAX-type Design - provides 35-40% more load capacity than standard radial bearings, offering more lateral support and can more capably withstand the harsh twisting and multi-directional forces that mountain bike suspension pivots encounter every time the bike is pointed downhill.
