Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Lime

TECH SPECS Headset Position Complete Steerer Tube 1-1/8-1.5 SHIS Lower ZS56/40 S.H.I.S. ZS44/28.6 | ZS56/40 Material Aluminum Bearing Grade Stainless Steel Lower Cup 56mm Primary Color Green Upper Cup 44mm Crown Race Diameter 40mm SHIS Upper ZS44/28.6 Head