Reset Racing Flatstack 5 Headset Lower Part 1 1 8 Inches Pressfit ZS57 30
- material: aluminum 7075, stainless steel, NBR
- bearing: angular ball bearing
- seal: radial shaft sealing rings, O-ring
- surface: anodized and laser-engraved
Thesemi integrated (also known as press fit or zero stack) 1 1/8" Ahead headset is suitable for frames with a 57 mm inner diameter headtube. TheS.H.I.S. denotation (see attachment) for the lower part offered here isZS57/30.