The 6901 (12x24x6mm) is a standard front hub bearing used in Shimano, Campagnolo, and many aftermarket front hubs. Our ceramic version provides Grade 3 silicon nitride balls, DLC-coated race, and ABEC-7 tolerances. Sold individually.
What You Get
- ✓ Grade 3 Si₃N₄ ceramic balls — harder and smoother than steel
- ✓ DLC-coated races reduce surface friction and extend life
- ✓ ABEC-7 precision tolerances for exact bearing bore fit
- ✓ 2RS contact seals: road-appropriate protection
- ✓ Sold individually — order the quantity you need
Technical Specifications
| Sold As |
Individual bearing |
| Seal Type |
2RS contact seals |
| Tolerance |
ABEC-7 |
| Dimensions |
12x24x6mm |
| Expected Life |
10,000–20,000 miles |
| Race Material |
52100 Chromium Steel, DLC Coated |
| Bearing Material |
Grade 3 Silicon Nitride (Si₃N₄) |
Compatibility
Shimano front hubs (105, Ultegra, Dura-Ace)
Campagnolo front hubs
DT Swiss front hubs (selected models)
Any application requiring a 12x24x6mm bearing