You had your choice of any bike in the shop but you made your selection based on potential upgrade options. ROTOR's line of Press Fit bottom brackets will easily accommodate your handpicked rig with its press fit BB shell. ROTOR conceived its Universal Bottom Bracket (UBB) concept to eliminate the complicated bottom bracket/crank compatibility challenge that has increasingly frustrated the mechanics at your LBS. Press Fit UBB's are the "yes" components to "Is this compatible with my press fit BB shell?" PF4130, PF4630, PF4124, PF4624.