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| Manufacturer part # | IS-2-HBS/42/ACB |
|---|---|
| Steerer outer diameter | 28.6mm (1-1/8") / 38.1mm (1-1/2") |
| Crown race inner diameter | 39.8 mm |
| Cup Insertion OD | Integrated |
| Stack height | 8.7 mm |
| Bearing type | Sealed |
| Headset type upper | Unthreaded fully integrated |
| Headset type lower | Fully integrated |
| Material | Aluminium |