Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Silver MFPN=2701658 Sealed cartridge bearing front and

Sealed cartridge bearing front and rear hubs

The Wolf Tooth 30T is the only 104 BCD chainring made in the market

Attaches to frame with (1) M8 Chainring Bolt

AV WC Strap

They are compatible with mountain and road bike handlebars thanks to an expanding wedge that makes a secure fit for most inner bar diameters

Industry Nine iRiX ZS44/ZS56 Headset : ZS44/28.6 | ZS56/40 ZeroStack Complete Silver MFPN=2701658 Sealed cartridge bearing front andTECH SPECS Lower Cup 56mm Upper Cup 44mm Headset Position Complete Material Aluminum Steerer Tube 1 1 8 1. 5 Crown Race Diameter 40mm Headset Type ZeroStack S. H. I. S. ZS44 28. 6 ZS56 40 SHIS Upper ZS44 28. 6 Primary Color Silver SHIS Lower ZS56 40 Bearing Grade Stainless Steel