| Manufacturer part # | 12100017000011 |
|---|---|
| Steerer outer diameter | 28.6mm (1-1/8") / 38.1mm (1-1/2") |
| Crown race inner diameter | 39.8 mm |
| Cup Insertion OD | 44 mm Top/56 mm Bottom |
| Stack height | 15.7 mm |
| Bearing type | Sealed |
| Headset type upper | Unthreaded semi-integrated |
| Headset type lower | Semi-integrated |
| Material | Aluminium |