Like Ceramic Hybrid, Zero Ceramic use a combination of ceramic (Silicon Nitride – Si3n4) balls and steel races, except they are of higher Grade 3 quality. The races are also black oxide treated and ground to a mirror finish which prevents corrosion and provides near perfect efficiency and tolerances.

Key Features:

• Bearing Code: 6808
• Dimensions: 40 x 52 x 7mm
• ABEC: 5
• Grade: 3
• Seals: VV
• Grease: Kyodo Yushi PS-2
• Application: Hubs, Bottom Brackets
• Weight: 29.21g

Occasionally, without notice, manufacturers change product design and/or specifications.