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Niner Air 9 RDO Mountain Bike Frame - 2018

Niner Air 9 RDO Mountain Bike Frame - 2018
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$2,000.00

Item # NNR006L

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  • Orange/Black, XS ($2,000.00)
  • Orange/Black, S ($2,000.00)
  • Orange/Black, M ($2,000.00)
  • Orange/Black, L ($2,000.00)
  • Orange/Black, XL ($2,000.00)
  • Satin Carbon/CMYK, XS ($2,000.00)
  • Satin Carbon/CMYK, S ($2,000.00)
  • Satin Carbon/CMYK, M ($2,000.00)
  • Satin Carbon/CMYK, L ($2,000.00)
  • Satin Carbon/CMYK, XL ($2,000.00)
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Description

Bonafide rocketship for XC domination.

Destined for crushing miles of rolling singletrack and toeing the line on race day, the Niner 2018 Air 9 RDO Mountain Bike Frame delivers blistering acceleration and nimble handling for ripping across forest networks and blowing the doors off the competition. It's upgraded with Boost rear spacing and tweaked geometry for 2018, making it more capable at holding a line through rugged terrain without sacrificing its razor-like precision.

The most notable changes include a lower handlebar height, giving the Air 9 a nudge towards the venerable RKT 9 RDO's aggressive positioning. Paired with a longer cockpit and slacker head tube, this makes for a frame that handles deftly on knife-edge lines and jumps the second you need it to. Compared to the previous Air 9 the chainstays scrunched in by 4mm to 435mm for lightning fast acceleration and nimble handing without crossing over into jumpy, squirrely territory.

The new Air 9 RDO also sizes down its seatpost diameter to 27.2mm to take advantage of that little bit of extra flex and resulting comfort found in a narrower post. Out back, this year's model now boasts another different dimension; namely, a 12 x 148mm Boost axle width, keeping it in line with current trends for wider hubs and stiffer wheelsets. Niner also tucks the brake caliper mounts on the chainstay, neatly within the rear triangle. This makes sense from a frame building standpoint, as the seatstay is generally the burlier of the two rear stays and the placement protects the caliper somewhat in the event of a crash. We also think that particular placement just plain looks better than an ungainly bump hovering above a seatstay.

As with Niner's other RDO offerings, the Air 9 RDO is constructed using Niner's Carbon Compaction System (CCS), which gives Niner complete control over tube wall thickness across the frame. This makes for tube walls that are virtually perfect, reduces the amount of materials required, and eliminates excess resin build-up. The result is a claimed weight loss of 10%, which is a nearly unheard of leap between model years.

The Air 9 RDO’s large bottom bracket area provides stiff, efficient power transfer and sure handling, with the added bonus of versatility when choosing your bottom bracket. Opt for the standard PF30 on a geared setup, or swap it out for Niner's separately sold BioCentric 30 bottom bracket cups to go singlespeed or for compatibility with your favorite 24mm spindle cranks.

The 2017 Niner Air 9 RDO Mountain Bike Frame is designed to pair with a 100mm travel fork for race-worthy, aggressive positioning or a 120mm fork for more upright, all-day trail fun.

  • Blistering rocketship for XC racing and riding
  • Modern XC racing geometry with improved handling
  • RDO carbon frame is exceptionally light and stiff
  • 12 x 148mm Boost axle spacing for rear end stiffness
  • Optimized for 100mm forks, also works with 120mm forks
  • 27.2mm seatpost for greater compliance on bumpy trails
  • Di2-compatible internal cable routing makes it futureproof
  • Clears up to 2.4in tires for added traction, bump compliance

Tech Specs

Frame Material:
RDO carbon fiber
Suspension:
hardtail
Wheel Size:
29in
Fork Travel:
[recommended] 100 - 120mm
Bottom Bracket Type:
73mm Press Fit 30 (Biocentric compatible)
ISCG Tabs:
no
Cable Routing:
internal
Front Derailleur Mount:
34.9 high clamp
Derailleur Pull:
bottom, side
Seatpost:
disc
Seatpost Diameter:
27.2mm
Seat Collar:
31.8mm
Rear Axle:
12 x 148mm Boost
Recommended Use:
cross-country
Manufacturer Warranty:
5 years

Geometry Chart

Niner

Geometry Chart

 

Air 9 RDO
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
XS 14in 22.6in 23.7in 15.5in 27.1in 3.7in 70o 73o 2.28in 17.1in 42.3in
S 15.5in 23.2in 23.9in 16in 28.5in 4.1in 70o 73o 2.28in 17.1in 42.9in
M 16.5in 24in 24.3in 16.7in 29.3in 4.3in 70o 73o 2.28in 17.1in 43.7in
L 19in 24.8in 24.6in 17.4in 31.3in 4.9in 70o 73o 2.28in 17.1in 44.5in
XL 21in 25.6in 25in 18in 33in 5.7in 70o 73o 2.28in 17.1in 45.3in
120mm 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
XS 14in 22.8in 24in 15in 26.7in 3.7in 69o 72o 2in 17.1in 42.3in
S 15.5in 23.3in 24.2in 15.5in 28.1in 4.1in 69o 72o 2in 17.1in 42.9in
M 16.5in 24.2in 24.6in 16.2in 29in 4.3in 69o 72o 2in 17.1in 43.7in
L 19in 25in 24.9in 16.8in 31in 4.9in 69o 72o 2in 17.1in 44.5in
XL 21in 25.7in 25.3in 17.5in 32.8in 5.7in 69o 72o 2in 17.1in 45.3in

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