Free 2-Day Shipping on Orders Over $50

Detail Images

  • Niner - Detail
  • Niner - Detail
  • Niner - Detail
  • Niner - 3/4 Back
  • Niner - Detail
  • Niner - Detail
  • Niner - Detail
  • Niner - Detail
  • Niner - Detail
  • Niner - AIR 9 29 2-Star Complete Mountain Bike - Black/Cyan
  • Niner - Detail -
  • Niner - Detail -
  • Niner - Detail -
  • Niner - 3/4 Back -
  • Niner - Detail -
  • Niner - Detail -
  • Niner - Detail -
  • Niner - Detail -
  • Niner - Detail -

Current Color

  • Niner - AIR 9 29 2-Star Complete Mountain Bike - Black/Cyan

Niner AIR 9 29 2-Star Complete Mountain Bike

$1,950.00

Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Find your size
|

Note: Actual inseam is not the same as pant inseam.How to measure

Recommended Size

We recommend a size in this bike.

EditMore details

Our size calculator is a starting point for finding the right size for you. To get personal advice talk to one of our fit experts at 1.888.276.7130 or chat now

Select options
  • Select options
    • XS
    • S
    • M
    • L
    • XL

    Select a Color:

    Select options
  • Select options
    • Black/Cyan

    Be the first to review

    Details

    AIR 9 29 2-Star Complete Mountain Bike

    Today's full-suspension frames are pretty good, but nothing quite matches the efficiency and weight savings of a hardtail. If you're looking for a worthy racing partner or your trails are a bit more on the mellow side, Niner's AIR 9 29 2-Star Complete Mountain Bike is worth a look. It provides the excellent rollover of 29-inch wheels and modern geometry so you can spend time riding your bike instead of wrenching on shocks, pivots, and the like. Built up with a dependable kit, this bike is chock full of value and makes for an exceptional first bike or if you're looking to step up your ride or add another one to the stable.

    Niner starts this build with a hydroformed aluminum frame for a lightweight ride with excellent trail feel. Using a multi-stage hydroforming process, a straight gauge tube is butted and mechanically formed in preparation for the hydroforming process. Up next is multi-stage hydroforming, which is a series of molds used in sequence to create complex shapes. Multiple steps might take longer but Niner is able to reduce weight and achieve higher strength. Hydroforming utilizes molds and fluid pressure to form metal tubes into the shapes best suited to the locations on the bike. These molds are created to the desired end shape, and tubes are placed in them while high-pressure hydraulic fluid is pumped in causing the tube to expand until it conforms to the desired shape.

    Its RockShox Judy Gold RL Solo Air provides plush travel up front and offers plenty of adjustment for dialing it in for your terrain and riding style. The tapered headtube sits at 68-degrees and lets you hang it out on the descents and still have the ability to pick just the right lines on uphill switchbacks. The stubby 17-inch chainstays let you slalom through the tight trees and makes getting the front wheel up and over trail furniture and wheelies a breeze. Built up in this configuration, this Air 9 features SRAM's NX Eagle 1x11 drivetrain giving you the same wide range as SRAM's higher tier offerings. Should you feel the need to run additional gearing, the frame can accommodate a front side swing derailleur if bikepacking is in your future. Adding to the versatility, the PF30 bottom bracket shell can house Niner's BioCentric 30 for singlespeed use. This clean solution eliminates the need for adjustable dropouts, bolt-on hubs, and chain tensioners. Forget having to adjust for brakes every time you swap out cogs. The Boost 148 spacing lets the bike transform wheels and tires from the 29 on this build to a 27.5+ should you choose to do so. Have the maximum roll over and speed for racing with the 29's, or op for the traction, comfort, and flotation with the plus.

    The Air 9's geometry is perfect for both hot laps after work or a multi-day bikepacking trip. Its fast rolling tires increase speed without sacrificing grip in the corners and simply rolls over rocks and roots. The frame has plenty of gets up and go and if you haven't been on a hardtail in a while, you'll quickly remember and appreciate the efficiency when climbing. A forged chainstay and bottom bracket junction increases drivetrain stiffness and offers ample tire clearance. Its Maxxis tires are 2.5 and 2.4-inch wide front and rear giving you plenty of volume to run them low for the maximum hookup. Lastly, an oversized Race Face bar and stem keep the responsiveness lit and offer plenty of leverage for positive handling.

    • A versatile aluminum hardtail from Niner
    • 29-inch tires cover ground quickly and grip
    • Progressive geometry yields agile and confident handling
    • Boost axle spacing affords 29x2.5 or 27.5x3.0 tires
    • SRAM NX Eagle 1x12 drivetrain provides a massive gear range
    • Rock Shox Judy fork gives 120mm of trail-taming travel
    • Item #NNR009R

    Tech Specs

    Frame Material
    aluminum
    Fork
    RockShox Judy Gold RL Solo Air
    Front Travel
    120mm
    Headset
    Niner IS
    Shifters
    SRAM NX Eagle
    Rear Derailleur
    SRAM NX Eagle
    Crankset
    SRAM NX EAGLE DUB
    Chainring Sizes
    32t
    Bottom Bracket
    SRAM DUB
    Bottom Bracket Type
    PF30
    Cassette
    SRAM NX PG1230
    Cassette Range
    11 - 50t
    Chain
    SRAM NX Eagle
    Brakeset
    SRAM Level
    Brake Type
    hydraulic disc
    Rotors
    SRAM G2CS [front] 180mm, [rear] 160mm
    Handlebar
    Race Face Aeffect R
    Handlebar Rise
    20mm
    Handlebar Width
    780mm
    Grips
    Niner Grrrips lock-on
    Stem
    Race Face Aeffect R
    Stem Length
    40mm
    Saddle
    Niner custom, Cr-Mo rails
    Seatpost
    Niner Alloy
    Wheelset
    Niner Alloy 29
    Front Axle
    15mm Boost
    Rear Axle
    12 x 148mm
    Tires
    [front] Maxxis Minion DHF 3C/EXO/TR, [rear] Maxxis Rekon 3C/EXO/TR
    Tire Size
    [front] 29 x 2.5in, [rear] 29 x 2.4in
    Pedals
    not included
    Recommended Use
    cross-country
    Manufacturer Warranty
    5 years on frame

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?