Chris king press fit conversion kitchris king precision components is a performance bicycle component manufacturer that has been operating for decades chris king employs a disciplined approach to manufacturing which includes rigorous quality control and highly developed production protocols giving you top end products for your ride bb conversion kit 1 press fit 30 bb shells 68mm wide bb shells 24mm road cranksets common cranks shimano road fsa road rotor bb conversion kit 2 press fit 3