CØ 6903 VV Zero Ceramic Enduro Bike Bearing

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.

Precision Tolerance: ABEC5

Rolling Element : Silicone Nitride Si3N4 Grade 3 Balls

Seals: VV

Material: Hybrid Ceramic

Used on: Hubs, Bottom Brackets

VV – Non Contact Seals.