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

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