Bicycle Bearing Ceramic Sampson Stratics Titanium Hub
S6902-2RS Ball Bearing. Item:S6902-2RS Ball Bearing. Type: Deep Groove Radial Ball Bearing. Premium ABEC-5 Quality with Si3N4 Sealed Ceramic Balls. Lubrication: Self Lubricated (Grease SRL) Bearing. Balls: Ceramic Si3N4.