BB86 (also called PF41) is the most widely used press-fit bottom bracket standard in modern road and gravel frames. Our BB86 Shimano BB houses Grade 3 silicon nitride ceramic bearings with DLC-coated races inside precision-molded cups. Designed specifically for Shimano's 24mm Hollowtech II spindle with zero adapter play. The glass-reinforced nylon cups isolate the bearings from frame vibration — no creaking, no compromise.
What You Get
- ✓ The most common press-fit standard — now with ceramic
- ✓ Grade 3 Si₃N₄ ceramic balls with DLC-coated races
- ✓ Glass-reinforced nylon cups eliminate creak and vibration
- ✓ Purpose-built for Shimano 24mm Hollowtech II spindle
- ✓ Dual-lip seals + dust covers for all-weather protection
- ✓ Lightweight press-fit design at 58g
Technical Specifications
| Weight |
58g |
| Seal Type |
Dual-lip seals + integrated dust covers |
| Tolerance |
ABEC-7 |
| Cup Material |
Glass-reinforced nylon |
| Expected Life |
18,000–25,000 miles |
| Race Material |
52100 Chromium Steel, DLC Coated |
| Shell Standard |
BB86 / PF41 (41mm ID, 86.5mm) |
| Bearing Material |
Grade 3 Silicon Nitride (Si₃N₄) |
| Spindle |
24mm (Shimano Hollowtech II) |
Compatibility
Shimano Dura-Ace FC-R9200 / FC-R9100
Shimano Ultegra FC-R8100 / FC-R8000
Shimano 105 FC-R7100 / FC-R7000
Shimano GRX FC-RX820 / FC-RX810
Most modern road and gravel frames (Trek, Giant, Canyon, BMC, etc.)