This Rotor PressFit 4624 Bottom Bracket (Steel) is no longer available although you may find similar or newer versions below:
The new, advanced non-contact Labyrinth seals yield a buttery-smooth spin with unparalleled protection against dust, water and mud. Ultra rigid plastic caps give high compression and deformation resistance, facilitating crisp shifting. Constructed of CNC machined 7075 aluminum. Adaptor cups and bearings for the installation of 24mm cranks in BB30 PF frames.