63801 LLU MAX - MAX - Design, Extra - Wide, ABEC-3, radial suspension bearing - 12mm x 21mm x 7mm Enduro Bearings pioneered MAX type bearings almost 20 years ago for bicycles to address the challenges associated with mountain bike pivots. MAX - type bearings provide 35 - 40% more load capacity than standard radial bearings by utilizing a special design where the maximum number of balls are inserted into the bearing, via a custom ground slot in the races. The additional balls, combined with deep race grooves in these bearings providing greater lateral support for the twisting and multi - directional forces associated with mountain bike pivots. This MAX - type, Black - Oxide, ABEC-3 bearing features deep - groove design races, with Grade 10 balls and full - contact, double - lip, labyrinth (LLU) seals for maximum protection against the elements, while keeping the 90% fill of Almagard extra high pressure grease inside and Black - Oxide/Magnetite coating provides an extra level of corrosio...