A practical choice for anyone replacing a PF30 bottom bracket on a bike fitted with a 30 mm spindle crankset and wanting a threaded, serviceable outboard-bearing solution.
The BlackBearing PF30 30mm Outboard Threaded is designed to connect a PF30 frame shell with a crankset using a 30 mm spindle. Its outboard bearing arrangement follows the external-bearing approach, giving the bearings room outside the frame shell rather than placing them directly inside it.
The threaded design is the practical difference for riders and mechanics. The two cups thread together through the frame, helping keep the bottom bracket stable and making future removal, bearing replacement and routine maintenance more straightforward than with a conventional press-fit installation. A stable interface can also help reduce unwanted movement and creaking when the system is correctly fitted.
Before ordering, confirm both frame and crank compatibility. PF30 is not the same standard as BB30: PF30 uses cups inside the frame shell, while BB30 places the bearings directly into the shell. For 68 mm shells, the crank spindle should be at least 103 mm long; for 73 mm shells, allow at least 108 mm.
PF30 frame compatibility
Designed around the PF30 bottom-bracket shell standard; check your frame specification before purchase.
For 30 mm spindles
Matches cranksets built around a 30 mm spindle rather than conventional 24 mm systems.
Outboard bearing position
Places the bearings outside the frame shell in an external-bearing layout.
Threaded cup connection
The cups thread together through the shell to create a stable installation when correctly fitted.
Simpler servicing
The threaded construction is intended to make removal, maintenance and bearing replacement easier.
68 mm shell guidance
Use with a crank spindle measuring at least 103 mm when fitted to a 68 mm-wide shell.
73 mm shell guidance
Use with a crank spindle measuring at least 108 mm when fitted to a 73 mm-wide shell.
BlackBearing is a French supplier of bearings and components for sport activities, with a particular focus on cycling. The company was founded by Garlan and Youenn, whose backgrounds in cycling, mechanics, industry and trade shaped its focus on application-specific mechanical components.
The brand first became known in France before expanding across Europe and other markets. Its cycling range serves both original-equipment and aftermarket applications and includes bearings and other bike components developed through material selection and field testing.
