Bottom Bracket

4224 BB30 Road to 24mm Ceramic Bottom Bracket

Part$125

Rotor's 4224 threads two 7075-T6 aluminum cups into a BB30 shell to run 24mm spindle cranks without adapters. Hybrid ceramic bearings—steel races with ceramic balls—roll smoother and need less maintenance than steel setups. Splined cups work with standard BB t

Specs

StandardBB30 (42mm)

Spindle24mm

BearingsHybrid ceramic (steel races, ceramic balls)

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