Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Purple Model=Progressive VALT Spring Fast rolling center knobs tightly CheckoutTitle=Vision Metron 5D ACR EVO Drop Handlebar 210000169970 The Rapidaptor quick release Size:140Mm

Industry Nine iRiX ZS44 ZS56 Headset : ZS44 28.6 ZS56 40 ZeroStack Complete Purple Model=Progressive VALT Spring Fast rolling center knobs tightly CheckoutTitle=Vision Metron 5D ACR EVO Drop Handlebar 210000169970 The Rapidaptor quick release Size:140Mm Fast rolling center knobs tightly spaced in a consistent pattern the center tread cuts down on rolling resistance while still digging into any terrain for dependable out of the saddle traction Ring Position Type Chain Retaining Single Ring Tooth Count 28 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 170 177 Hubs Chainline Hub Compatibility 150 157 DH Hubs Chainline Hub Compatibility 157 Super Boost Hubs Chainline Hub Compatibility 141 148 Boost Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount SRAM