The Enduro Bearings 6805 LLB - Ceramic Hybrid offers a smart blend of chromium steel races from the ABEC 5 range and Grade 5 ceramic balls made of Silicon Nitride (Si3n4). This mix results in a ceramic bearing that is lighter, more efficient, and cost-effective. It's ideal for use in hubs or bottom brackets. The low contact LLB seals keep out water and dirt without adding friction or drag. Bearing Code: 6805 Dimensions: 25mm x 37mm x 7mm ABEC: 5 Grade: 5 Seals: LLB Grease: Kyodo Yushi PS-2 Application: Hubs, Bottom Brackets Weight: 18.74g Choose the Enduro Bearings 6805 LLB - Ceramic Hybrid for a reliable and efficient performance in your cycling components.