Titen bearings are high speed bearings, made of super hard carbon steel. They are specifically designed to withstand the roughness of raw surfaces and still maintain their performance after months of riding. Titen bearings are available in different precision grades from ABEC 5 to 9. All bearings feature sealed metal shields. Furthermore the Titen bearings are lubricated with viscosial grease instead of oil which provide extra protection in wet and dusty conditions, and a longer life span.