Niner Air 9 Carbon 3-Star XT Bike

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For every model, whether it's their lightest cross country hardtail or the burliest full suspension bike, Niner considers how each angle or length will interact with big wheels to affect the finished build.

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Rather than just offering the same carbon products, Niner makes sure they are maximizing the benefits of the material so that their carbon products are purpose-built from the ground up.

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The basic concept of the larger diameter is simple: it will keep your wheels on top of oncoming obstacles. Rather than riding IN the terrain, you'll be riding ABOVE it, gaining more control and stability on even the roughest trails.

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Niner Air 9 Carbon 3-Star XT Bike

Lighter than air? That's what you might think, once you try out the Air 9. With years of research and development put into the Air 9 series, these machines are race-ready cross country hardtails designed for maximum speed. Featuring the same, sleek frame design as the high-end RDO model, the Air 9 Carbon uses a simpler layup resulting in a slight (albeit negligible) increase in weight. Rigid and fast, the Air 9 Carbon provides excellent acceleration and power transfer through its refined frame geometry. A favorite among hardcore XC racers, the Air 9 Carbon was even used to win the Singlespeed World Championships. If you are in search of a bone fide cross country machine, the Air 9 Carbon should already be on your radar. This particular version, the 3-star build, offers high-level components like Shimano's XT M8000 drivetrain, a RockShox Reba RL fork, and XT M8000 Series disc brakes.  

  • Color: Gunmetal/Niner Green
  • Size: Medium
  • Manufacturer Part #: 03-799-16-04-24
  • Highlighted Features:
    • Niner Carbon for stiffness, strength and ride quality
    • Now featuring 142 x 12 spacing
    • Niner’s World Cup tested racing geometry
    • Tapered head tube for front end stiffness, strength and steering precision
    • Low profile disc brake mount
    • Replaceable rear derailleur hanger
    • Clearance for 2.4 tire
    • Improved cable routing is Di2 ready and side swing front derailleur compatible
    • New lighter Niner headbadge
    • XT M8000 2x11 drivetrain
    • C5 Carbon warranty – 5 years


Model Niner Air 9 Carbon 3-Star XT (2x11)
Fork RockShox Reba RL Solo Air, 120mm, 110X15mm
Brakes Shimano XT M8000 Ice Tech Pads with 180/160mm RT86 Ice Tech Rotors
Wheels Niner Alloy, 110x15mm (f), 142x12mm (r), Niner Graphic
Tires Maxxis Ikon SC 2.35 (f), 2.20 (r)
Handlebar Niner Flat Top Carbon, 710mm, Niner Graphic
Stem Niner Alloy Stem, Niner Graphic
Seat Post Niner Carbon Seat Post, 400mm, Niner Graphic
Grips Niner Grrrips L/O Nylon
Saddle Niner Custom with Cr-Mo Rails
Shifters Shimano XT M8000 I-Spec II (l & r)
Front Derailleur Shimano XT M8000 11sp
Rear Derailleur Shimano XT M8000 GS Med Cage 11sp Shadow Plus
Chain Shimano XT HG-600 11sp
Cassette Shimano XT M8000 11sp 11-42T
Crankset Shimano XT M8000 36/26T
Bottom Bracket Shimano XT MT800 w/ SRAM PF30 to BSA adapter


Niner Air9 Carbon Geometry
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