Bottom Bracket BottomFit BB86/92 41mm (BBO-29 )
The BBB Cycling BottomFit BBO-29 is a premium press-fit bottom bracket featuring a three-piece threaded design. This unique construction allows the two sides to thread together inside the frame, eliminating creaks and ensuring perfect bearing alignment. It is fully CNC machined from high-strength 7075-T6 aluminum for maximum durability and precision.
Equipped with self-aligning chrome steel bearings, the BBO-29 offers exceptionally smooth rotation and high load capacity. Co-molded bearing shields provide a robust defense against water and grit, extending the life of your drivetrain. Designed for 24mm spindle cranksets, it is a versatile and quiet solution for modern BB86 and BB92 frame standards.
Quick Facts
| Feature | Specification |
|---|---|
| Frame Interface | PF41 (86.5 / 89.5 / 92mm Width) |
| Spindle Diameter | 24mm (Shimano Hollowtech II, etc.) |
| Design | 3-Piece Thread-Together Press Fit |
| Material | 7075-T6 Anodized Aluminum |
| Bearings | Self-Aligning Chrome Steel |
| Protection | Co-molded Bearing Shields |
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