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.
BlackBearing B5 bearings are high-quality steel models. They deliver high-performance smoothness and optimised service life, characteristics appreciated by cyclists and mountain bikers who use their bikes for sport, as well as by competitors. The bottom bracket is compatible with Italian-style threaded bottom bracket standard frames, with a width of 68 mm to 73 mm. It allows the installation of cranksets with a 30 mm diameter axle (Rotor type).
Features
- Italian thread
- For frames with a width of 68 mm to 73 mm at the bottom bracket
- Compatible with all BB386 cranksets (FSA, Rotor 3D+, Sram, etc.)
- B5 quality steel bearings
- Aluminium cups
Bottom bracket supplied with mounting tool for use with a 1/2 inch square axle wrench.