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Niner Air 9 Carbon Mountain Bike Frame-2016

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Sale $1,019.32 - $1,049.30 $1,499.00 32% off

Item # NNR002A

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Hard-to-beat hardtail.

Niner, in accordance with the company's name, has been on a mission for years to perfect the 29-inch-wheeled hardtail mountain bike, and with some new paint work and structural upgrades like a 12x142mm thru-axle, the 2016 Niner Air 9 Carbon frameset makes this mission quite clear.

The AIR 9 Carbon borrows heavily from Niner’s AIR 9 RDO race rocket. At the core of every Niner frame is extensive computer-based finite element analysis, and here it’s used to develop a high modulus carbon fiber structure with optimized weaves, layups, and tube shapes. The weight saving measures haven’t been taken quite as far as the featherweight RDO, but the AIR 9 Carbon is still adequately svelte. The swooping lines aren’t chosen for aesthetics, rather they’re designed to minimize chatter and guide impact forces to the stronger parts of the frame. Chain torque goes directly to the rear wheel via the oversized PF30 bottom bracket shell and shapely chainstays, while trail vibrations are damped by the swooping seatstays. Niner ties the bottom bracket to the precision-enhancing tapered head tube via a large down tube to ensure the frame tracks true and responds to every input.

Niner recommends an 80 to 100mm suspension fork, or a rigid unit with a 470mm axle to crown length and 45mm offset. Unsurprisingly, its award-winning carbon fork shares those exact dimensions. Titanium plates are incorporated gracefully into the frame to protect against chain drop and chain suck. The tapered head tube comes equipped with a Cane Creek IS42/28.6|IS52/40 integrated (Campy style) headset. You’ll need a 31.6mm seatpost and a 35mm seat clamp. The rear triangle offers clearance for tires up to 2.4 inches, although there are variances across tire manufacturers, so some of the largest 2.4s may not fit. Its chainstay-located, post-style brake mount accepts either a 160mm rotor, or a 185mm rotor with the correct adapter. The maximum chainring size is limited to a 32t middle ring. Most standard triple chainring cranksets will clear, and if you choose a more modern double, Niner recommends a combination no larger than 28/40t.

  • Carbon fiber
  • Protective titanium plates
  • Included headset
  • PF30 bottom bracket
  • Tapered head tube
  • 12x142mm thru-axle
  • Requires 31.6mm seatpost and 35mm seat clamp

Tech Specs

Frame Material:
carbon fiber
Suspension:
front only
Head Tube Diameter:
tapered (IS42/28.6 | IS52/40)
Headset Included:
yes
Bottom Bracket Type:
PF30
ISCG Tabs:
no
Front Derailleur Mount:
34.9mm high clamp
Derailleur Pull:
bottom
Seatpost Diameter:
31.6 mm
Rear Axle:
12x142mm thru-axle
Recommended Use:
cross country
Manufacturer Warranty:
5 years

sizing chart

AIR 9 size by rider height

|

Geometry chart

Niner Bikes

Geometry Chart

 

Air 9 Carbon
80mm Travel Fork
 Seat Tube
(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Drop

(BBD)

Chainstay

(CS)

Wheelbase
S 15.5in 23.1in 23.6in 16.1in 27.8in 4.2in 71.0 deg 74.0 deg 2.4in 17.3in 42.4in
M 16.5in 23.7in 24.0in 16.7in 28.6in 4.3in 72.0 deg 74.0 deg 2.4in 17.3in 42.7in
L 19.0in 24.0in 24.6in 17.3in 30.7in 5.0in 72.0 deg 74.0 deg 2.4in 17.3in 43.5in
XL 21.0in 25.2in 25.3in 17.8in 32.4in 5.7in 72.0 deg 74.0 deg 2.4in 17.3in 44.3in
100mm Travel Fork
 Seat Tube
(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

Head Tube

(HT)

Head Tube Angle

(HTo)

Seat Tube Angle

(STo)

Bottom Bracket Drop

(BBD)

Chainstay

(CS)

Wheelbase
S 15.5in 23.2in 23.9in 15.7in 28.0in 4.2in 70.0 deg 73.0 deg 2.1in 17.3in 42.7in
M 16.5in 23.9in 24.3in 16.3in 28.8in 4.3in 71.0 deg 73.0 deg 2.1in 17.3in 43.0in
L 19.0in 24.6in 24.8in 16.9in 30.9in 5.0in 71.0 deg 73.0 deg 2.1in 17.3in 43.7in
XL 21.0in 25.4in 25.6in 17.4in 32.6in 5.7in 71.0 deg 73.0 deg 2.1in 17.3in 44.5in

Niner Air 9 Carbon Geo

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Unanswered Question

I buy a lot of bike gear from BC, and I prefer to buy from you guys. However, Jenson has this frame for $679 for a Large, which is what I need. I hate to ask, but do you price match?

Category Defining Performance

  • Familiarity: I've put it through the wringer

A hardtail should be fast and playful; there's a reason to go without rear suspension, and that is for more speed! The Air 9 for a long time has been one of the best hardtails out there, and Niner continues this pedigree as not only an incredibly responsive ride, but also with reasonable compliance, and plenty of maneuverability.

While I won't take quite the same lines as my full suspension or trail bikes on the Air 9; I am still more than willing to conquer the same terrain with confidence, while making up the time difference on the climbs and flats.

If you are looking for a hardtail that defines the category, look no further!

For additional information, please feel free to reach out to me directly.

Bradley Gehrig
Customer Account Manager
Office: 801–204-4541
bgehrig@backcountry.com