BlackBearing C Italian 68 to 73 bottom bracket BB386 ceramic

BlackBearing bottom brackets offer superior performance and quality thanks to their BBlock system. These two-piece bottom brackets with CNC-machined aluminium cups guarantee greater rigidity, allowing for optimal bearing alignment even under heavy loads. This results in more durable performance and less creaking. The bearings can be replaced while retaining the aluminium structure of the bottom bracket, reducing long-term maintenance costs.Equipped with ceramic bearings, the BlackBearing Italian 68/73 mm bottom bracket saves a few grams and delivers exceptional smoothness thanks to the extremely low friction of the ceramic combined with the aluminium cups, which ensure optimal bearing alignment. The bottom bracket is compatible with frames with Italian-style threaded bottom bracket standards, with a width of 68 mm to 73 mm. It allows the installation of cranksets with a 30 mm diameter axle (Rotor type).