Acros AIS headsets are found on premium performance frames from Trek, BMC, Colnago, and others. The AIS system integrates directly into the headtube with zero external hardware. Our ceramic set replaces AIS bearings with Grade 3 silicon nitride balls, DLC-coated races, and ABEC-7 tolerances — keeping high-end frame geometry paired with high-end bearing performance.
What You Get
- ✓ Grade 3 Si₃N₄ ceramic balls — reduced steering friction from ride one
- ✓ DLC-coated chromium steel races for extended bearing life
- ✓ ABEC-7 precision tolerances for smooth, play-free steering
- ✓ Matched pair: upper and lower bearings included
- ✓ Compatible with Acros AIS integrated headset systems
Technical Specifications
| Includes |
2 bearings (upper + lower) |
| Seal Type |
Integrated contact seals |
| Tolerance |
ABEC-7 |
| Configuration |
Integrated, various diameters |
| Expected Life |
20,000–35,000 miles |
| Race Material |
52100 Chromium Steel, DLC Coated |
| Compatible Headset |
Acros AIS compatible |
| Bearing Material |
Grade 3 Silicon Nitride (Si₃N₄) |
Compatibility
Trek Madone (Acros AIS)
BMC Teamachine SLR (Acros AIS)
Colnago C64, V3Rs (Acros AIS)
Wilier Filante SLR
Any frame spec'd with Acros AIS integrated headsets