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Niner AIR 9 RDO / Shimano XT Complete Mountain Bike

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Item # NNR0044

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Item # NNR0044

Description

Ready to race.

The AIR 9 Carbon is a highly respectable tool of the hardtail trade, and it's hard to believe that Chris Sugai and his band of overachieving engineers could improve on that platform. However, Niner did just that. In reality, Niner developed a completely new chassis to be worthy of Niner's RDO designation, an acronym for 'Race Day Optimized.' The AIR 9 RDO is an entirely different animal, clearly aimed to place you on the podium. And on top of this, we've spec'd it with the Shimano XT Complete Mountain Bike kit in order to ensure that this statement remains true.

And while this frame shares the AIR 9 name with Niner's versatile carbon hardtail, that's about all that they have in common. Niner eliminated all excess on this frame, and focused solely on making it as light as possible. For example, the rear brake mounts are now cleanly located inside the stays. This reduces the amount of hydraulic line needed, as well as making the AIR 9 RDO look lean and mean. Also, this frame doesn't use Niner's CYA bottom bracket system. And although CYA is renowned for its versatility, it would have added complexity and heft to this purpose built race machine. So, Niner went with the lighter PressFit30 interface instead. However, the RDO does retain the clean internal cable routing and titanium chain-slap protectors found on the AIR 9 Carbon.

The AIR 9 RDO isn't just cosmetically and physically different -- it's structurally different, too. At the core of every Niner frame is extensive computer-based, finite element analysis. And with the RDO, it's used to develop a high modulus carbon fiber structure with optimized weaves, lay ups, and tube shapes. Accordingly, this strategy produced the lightest Niner to date. The RDO's fluid form is no accident, either. In fact, it's designed to dampen chatter and guide impact forces to the stronger parts of the frame. Now, chain torque goes directly to the rear wheel via the large bottom bracket shell and shapely chainstays, yet trail vibrations are quelled by the swooping seatstays. Further along these lines, Niner tied the bottom bracket to the strength- and precision-enhancing tapered head tube via a large down tube. This ensures that the frame tracks true and responds to every input.

Leading the AIR 9 RDO's charge is a FOX FLOAT 29 CTD with 100mm of travel. CTD, or Climb, Trail, and Descend, is a three position switch to quickly adjust the forks tuning for the conditions on hand. It has a 15mm thru axle upon which an Easton EA70 XCT wheelset rides. The wheels are wrapped in Schwalbe Rocket Ron 2.25in tires, and while the wheels are tubeless ready, we ship them with tubes installed -- allowing easy future upgrades.

The drivetrain is adorned with Shimano's stalwart XT cranks, cassette, chain, and shifters. Also, keeping speed in check are XT hydraulic disc brakes. For the cockpit, the bike features Easton's EA70 bars, stem, and seatpost, with a Selle Italia SL Kit Carbonio saddle topping it off.

The Niner AIR 9 RDO Shimano XT Complete Mountain Bike is available in the color Licorice and in four sizes from Small to X-Large.

Tech Specs

Frame Material:
carbon fiber
Suspension:
hardtail
Fork:
FOX FLOAT 29 CTD
Front Travel:
100 mm
Shifters:
Shimano Dyna-Sys XT
Front Derailleur:
Shimano Deore XT
Rear Derailleur:
Shimano Deore XT
Crankset:
38/26
Crank Arm Length:
175 mm
Bottom Bracket:
PressFit
Pedals:
not included
Cassette:
11-36 t
Chain:
Shimano XT
Brake Set:
Shimano XT
Handlebar:
Easton EA70
Grips:
WTB DC
Stem:
Easton EA70
Stem Length:
90 mm
Saddle:
Selle Italia SL
Seatpost:
Easton EA70
Wheelset:
Easton EA70 CXT
Tires:
Schwalbe Rocket Ron
Tire Size:
29 x 2.25 in
Recommended Use:
cross country racing and trail
Manufacturer Warranty:
5 years on frame

Geometry chart

Niner Bikes

Geometry Chart

 

Air 9 RDO
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 16.3in 27.6in 4.2in 72.0 deg 74.0 deg 2.4in 17.3in 42.2in
M 16.5in 23.7in 24.0in 16.9in 28.4in 4.3in 72.0 deg 74.0 deg 2.4in 17.3in 42.8in
L 19.0in 24.5in 24.6in 17.4in 30.6in 5.0in 72.0 deg 74.0 deg 2.4in 17.3in 43.6in
XL 21.0in 25.2in 25.3in 18.0in 32.2in 5.7in 72.0 deg 74.0 deg 2.4in 17.3in 44.4in
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 15.9in 27.8in 4.2in 71.0 deg 73.0 deg 2.1in 17.3in 42.4in
M 16.5in 23.9in 24.3in 16.5in 28.6in 4.3in 71.0 deg 73.0 deg 2.1in 17.3in 43.1in
L 19.0in 24.6in 24.8in 17.0in 30.7in 5.0in 71.0 deg 73.0 deg 2.1in 17.3in 43.8in
XL 21.0in 25.4in 25.6in 17.6in 32.4in 5.7in 71.0 deg 73.0 deg 2.1in 17.3in 44.6in

Niner Air 9 RDO Geo

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Here's what others have to say...

How much does this bike weigh as spec'ed...

How much does this bike weigh as spec'ed with XT components?

Responded on

Although weight will vary by size, most of these come in between 23 and 24 LBS. Please feel free to contact us directly with any other questions we can help you with at 888 276 7130