Rotor Bottom Bracket BBRight (UBB4630) pressfit with threaded sleeve steel
Rotor Bottom Bracket PF30 (UBB4630) pressfit with threaded sleeve steel
Rotor Bottom Bracket BB386 EVO (UBB4630) pressfit with threaded sleeve steel
Enduro Bearings Bottom Bracket PF30 (4630) Torqtite Angular XD-15 ceramic red