To easily identify your bearing requirement view the ROTOR Bottom Bracket Chart, Click HERE
Then type the C04 number into the search box at the top to view your steel or ceramic options available.
ROTOR´s Universal Bottom Bracket concept was designed to ease the frustration that´s been boiling over as a result of complicated bottom bracket/crank compatibility challenges. The proliferation of so-called bottom bracket standards has spawned a variety of symptoms that the UBB has successfully treated by providing a solution to fit your bike, regardless of BB type.