Kogel Hybrid bearings use premium grade Silicon Nitride (Si3n4) Bearings and premium hardened steel bearing races which are mirror polished to perfection. The result? A long lasting, smooth bearing which provides less resistance and is less prone to failures. These bearings are rated to the Grade 3 / ABEC 5 level - built to spin with minimal friction.
Specifications
- Fit: 42mm Direct Fit
- Shell Width: 73/83mm - Offset * Also known as BB30A73 and BB30A83
- Compatibility: Shimano Hollowtech II, SRAM GXP, and most 24mm spindle systems.
*System includes GXP Reducer