Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Gold MFPN=11.4315.013.080 Features include ergonomic grips and

Features include ergonomic grips and a crimper

requiring less force per pump stroke than competitor pumps to inflate high-volume tires

1 RCT3 damper featuring 3-position compression adjust (open/pedal/firm) with low speed compression adjust

Bottom bracket: 1/4x9=12

Fit for most other tubeless rims and wheel

Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Gold MFPN=11.4315.013.080 Features include ergonomic grips andTECH 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