Titen high speed bearings are made of super hard carbon steel and are specifically designed to withstand the biggest gaps and maintain their performance after months of riding. New is a Viscoseal grease which is specially developed for outdoor use. The grease is dispersed to the outside through the rotation of the bearings and seals off all cracks and openings. This effectively prevents dust and dirt from entering and results in a much longer life time and speed.
Each 4-pack comes with 2 bearing spacers Available in ABEC rated 5, 7, and 9 and Swiss Red X Bearings: Titen Red X bearings are made in the famous Swiss manufacturing process. They are as fast as ABEC 9's however they maintain their speed over a much longer period of time.