These IS headsets are made exclusively for Specialized frames with molded-in internal bearing cups Custom in-house designed seals Enduro stainless bearings Uppers include a 5mm integrated spacer stem cap with an alloy bolt Made in MN, USA TECH SPECSmodelPr
| model | Premium Specialized IS |
| S.H.I.S. | IS42/28.6 |
| upper/lower | upper |
| stack | 3mm |
| color | black |
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