Race Face CINCH BB92 Bottom Bracket - BB92, 41mm x 92mm, 30mm Spindle, External Seal, Black
The Race Face CINCH BB92 Bottom Bracket is built for riders using 30mm spindle cranksets in BB92 press-fit frames who want a clean, reliable fit without compatibility guesswork. This is a press-fit bottom bracket designed specifically for modern mountain, gravel, and performance builds using Race Face CINCH and other compatible 30mm spindle systems.
This version fits BB92 frames with a 41mm shell ID and 92mm shell width, and supports a wide range of 30mm spindle cranksets beyond just Race Face, making it a strong service replacement or upgrade option for many performance bikes.
The external seal design improves contamination resistance and long-term bearing life, especially for wet rides, gravel use, and mountain bike conditions.
Key Functional Details
- BB92 press-fit bottom bracket for 30mm spindle cranksets
- Fits 41mm shell inner diameter and 92mm shell width
- Designed for Race Face CINCH crank family
- Compatible with multiple 30mm spindle crank systems
- External seal improves durability and contamination resistance
- Strong fit for MTB, gravel, and high-load riding applications
- Ideal replacement for worn OEM BB92 press-fit systems
Technical Specifications
| Brand | Race Face |
| Model | CINCH Bottom Bracket |
| BB Standard | BB92 |
| Frame Interface | Press Fit BB92 |
| Shell Width | 92mm |
| Shell Inner Diameter | 41mm |
| Spindle Compatibility | 30mm |
| Seal Type | External Seal |
| Color | Black |
| Compatible Spindle Systems | RaceFace/Easton CINCH, 386 EVO, Rotor 3D+, e*Thirteen P3 Connect, Zipp Vuma |
Compatibility & Technical Notes
Good Fit: frames using BB92 press-fit shells measuring 41mm ID x 92mm width with 30mm spindle cranksets.
Not A Fit: BSA threaded frames, PF30, BB30, T47, BB86, or Shimano 24mm spindle cranksets unless specifically converted using the correct system.
This is one of the most common buying mistakes in bottom brackets—matching spindle diameter but ignoring shell standard. Both must match correctly.
Service / Ownership Context
Press-fit bottom brackets are often replaced because of contamination, noise, or worn bearings—not because the crank failed. Proper frame prep and accurate pressing matter more than most riders realize.
For gravel bikes and mountain bikes ridden in wet conditions, external seals make a real difference in bearing life and service intervals.
Fit & Use Signals
Best for:
- Mountain bike builds
- Performance gravel bikes
- Race Face crank upgrades
- 30mm spindle drivetrain conversions
- OEM bottom bracket replacement
Not ideal for:
- Threaded BSA frames
- Shimano Hollowtech II 24mm spindle setups
- Customers unsure of frame BB standard
- Quick “guess and order” compatibility decisions
