Enduro Bearings BB30 Zero Ceramic Bottom Bracket Bearing Kit

Upgrade you stock bottom bracket. Enduro bottom brackets are designed to spin more efficiently and for longer. 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 toa mirror finish which prevents corrosion and provides near perfect efficiency and tolerances.

Fits BB30 frames – 42mm diameter with a shell width of 68mm for road and 73mm for mountain
Zero Ceramic bearings
45.42g