- Custom hydroformed aluminum alloy tubing for a carefully tuned ride feel
- Tapered headtube for steering precision and stiffness
- Niner's proven hardtail 29er geometry
- Optimized for 80 to 100mm suspension forks
- Disc brake only
- Press fit 30 bottom bracket for more weight savings
- Replaceable derailleur hanger
The Air 9 is our fast, light, geared-only alloy racing hardtail. This upgraded version integrates
hydroformed tubing throughout. More than a cosmetic feature, hydroforming allows us to shape tubes and optimize strength and stiffness in key areas, giving us the ability to create beautifully tuned frames with precise ride characteristics. You will find hydroforming in the toptube, downtube, headtube, chainstays and seatstays.
Because of the larger welding area created by the new
tapered headtube, we are able to include a massive hydroformed downtube as well as a significantly larger