
BLACK BEARING B3 Bearing - ABEC3 - 12x28x8mm
Specially designed for cycling, these bearings replace your original bearings. Technical specification: Chrome steel balls SAE52100 Chrome steel rings SAE52100 "2RS" seals: Latest generation labyrinth seals with double lip. Improved resistance to water and dust, combined with reduced friction. Ground tracks for smooth running and durability. Lubricants of the highest quality. Quality balls ABEC 3 standard. Secure ball position due to metal cage.











