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When Niner set out to design an aluminum version of their highly praised and World Cup tested Air 9, they didn’t settle for mediocrity when it came to the quality of alloy. Knowing that any sort of compromise in frame material would do injustice to the proven geometry, Niner shaped the Air 9 using high end hydroformed alloy that benefits from the same decade of refinement and testing as its carbon fiber siblings.
To make Niner’s most economical cross-country race-frame both lighter and faster, this upgraded version integrates Niner's hydroformed tubing throughout. More than just a chic technology marketing term, hydroforming allows Niner to shape and hinder the tubes for optimized strength and stiffness in key areas, giving the ability to create beautifully tuned frames with precise ride characteristics. Hydroforming is found in the top tube, downtube, headtube, chainstays and seatstays, equating to an overall much lighter and stiffer ride feel that promotes more precise steering and a snappier power transfer. The rigid sides of the signature downtube and top tube shapes maximize torsional stiffness, with buttery smooth ride quality achieved through the flat sections on each tube, which act like leaf springs.
The Air 9 features a tapered headtube with an integrated headset. By allowing the use of the newest generation of 1.5” tapered steerer suspension forks and integrated headset, Niner creates the stiffest front end possible – leading to amazing steering precision as you carve corners and descend with confidence. Should you find yourself mashing the “I wish I had a little bit more travel” button; like a genie in a lamp, Niner has granted that wish by designing the new Air 9 to accommodate forks with up to 120mm of travel.
Employing a Pressfit 30 standard bottom bracket, the Air 9 perfectly mates its larger aluminum down tube with the larger BB shell to further optimize power efficiency, while allowing lighter, stiffer cranksets to be used. The new version of the Air 9 features a 12 x 142 rear drop out spacing with Maxle to maximize rear triangle stiffness, and allow easier maintenance.
|Frame||Niner Air 9 hydroformed alloy, 142 x 12 rear spacing|
|Bottom Bracket||PF30 compatible (not included)|
|Intended Use||XC, Endurance, Trail|
Note: Components are subject to change without notice.
|Size||Extra Small||Small||Medium||Large||Extra Large|
|A: Seat Tube Length||381||394||419||483||533|
|B: Effective Top Tube||575||590||607||626||645|
|E: BB Height||n/a||n/a||n/a||n/a|
|F: BB Drop/Rise||54||54||54||54||54|
|G: Head Tube Length||95||105||110||125||145|
|H: Head Tube Angle||71°||71°||71°||71°||71°|
|I: Seat Tube Angle||73°||73°||73°||73°||73°|
|J: Standover Height||688||724||744||796||837|
|K: Chainstay Length||439||439||439||439||439|