Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Gold MFPN=11.4315.013.080 BoXXer top crown sizing reference

BoXXer top crown sizing reference (head tube+headset): short (3/4 inch drop): under 160mm/tall (2 inch drop): 160-190mm

Bottom bracket: 1/4x9=12

Features include ergonomic grips and a crimper

Fit for most other tubeless rims and wheel

-02 & -04: Rear

Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Gold MFPN=11.4315.013.080 BoXXer top crown sizing referenceTECH SPECS Bearing Grade Stainless Steel Headset Position Complete Crown Race Diameter 40mm SHIS Upper ZS44 28. 6 Headset Type ZeroStack SHIS Lower ZS56 40 S. H. I. S. ZS44 28. 6 ZS56 40 Steerer Tube 1 1 8 1. 5 Material Aluminum Primary Color Gold Lower Cup 56mm Upper Cup 44mm