The ABEC3 609 2RS raises the bar for military standard, high precision bearings. Some of the finest cycling components come standard with this bearing, featuring hardened chromium steel races, balls, and tough riveted steel retainers, for a durable and perfect low-cost performance upgrade.
2RS: Literally means the bearing has Two Rubber Seals. There are many types of seals. On most other bearings 2RS means that the seal is made from rubber and has one sealing lip rubbing on any flat part of the inner race. Enduro’s seals are usually either LLU (usually the MAX type bearings) or LLB (better for hubs).
Mobile HP 222: This grease is another high pressure grease for maximum protection and constant lubrication. This synthetic grease holds up under all conditions and will not break down.