Seals: LLB. At Enduro they utilize several types of grease depending on the projected application of the bearing. They also fill both sides of the bearing for maximum lubrication, unlike industrial bearings which are only single filled.
Bontrager 18307 LLB 6903-2 Wheel Hub 2RS Bearings sold individually FREE POST
Enduro Bearings 6903 LLB - ABEC 3
6903 2RS | Wheel Bearing | Stainless Steel
6902 LLB | Wheel Bearing | by Enduro
6803 LLB | Wheel Bearing | by Enduro
18307 LLB | Wheel Bearing | by Enduro