These IS headsets are made exclusively for Specialized frames with molded-in internal bearing cupsCustom in-house designed sealsEnduro stainless bearingsUppers include a 5mm integrated spacer stem cap with an alloy boltMade in MN, USAModelPremium Specializ
| Model | Premium Specialized IS |
| S.H.I.S. | IS42/28.6 |
| Upper/Lower | Upper |
| Stack | 3mm |
| Color | Black |
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