Promax IG-45 Alloy Sealed Integrated 45x45 1-1/8" Headset Black Front/Rear-Rear (3sp) 1-1/8" Steerer tube diameter

1-1/8" Steerer tube diameter

The Zipp Vuka Alumina crafted from 6066 series aluminum offers a base bar with superior aerodynamics and ergonomics at an affordable price

The Current tire features a directional grippy tread pattern with good shape and tire width

Use the same 3 bolts to attach the Wolf Tooth ring or if you need

Choose 70mm or 90mm drum brake front hub (brake lever sold separately)

Promax IG-45 Alloy Sealed Integrated 45x45 1-1/8" Headset Black Front/Rear-Rear (3sp) 1-1/8" Steerer tube diameterThe IG 45 integrated headset features an aluminum cap bearing cover and crown race with super smooth rolling precision 4545 bearings. Color Black Lower Stack Height 14. 2 Crown Race 30 Weight 85 Defined Color Black Upper Stack Height 20. 8 S. H. I. S Upper IS42 S. H. I. S. Stem Clamp Diameter 28. 6 Threadless S. H. I. S Lower IS42 Size 1 1 8"