The Promax IG-45 integrated headset features an aluminum cap, bearing cover and crown race with super-smooth rolling, precision 45×45 bearings.
For use in tapered 1-1/8″” top, 1.5″” bottom headset applications.
Specs
- Crown Race: 30
- S.H.I.S Lower: IS52
- S.H.I.S Upper: IS42
- S.H.I.S. Stem Clamp Diameter: 28.6 Threadless









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