Modern Aluminum Racer for "Trail Country" Adventures.

The Niner AIR 9 Hardtail 29" in silver/blue (2023 Model) combines the efficiency of an XC bike with the reserves of a trail hardtail. With its balanced geometry, Fox Float 32 Rhythm suspension fork, and a complete SRAM 12-speed Eagle drivetrain, this bike is ready for fast marathon laps, more technical trails, and long days in the saddle.

The elaborately hydroformed 6061-T6 aluminum frame offers a strong balance of stiffness, weight, and comfort. Niner's "Trail Country" geometry, with a steep seat tube angle for climbing efficiency and a slacker head tube angle for downhill stability, puts you in a centrally positioned, controlled riding position – perfect for demanding terrain and modern trail profiles.

The suspension is controlled by a Fox 32 Rhythm 29" suspension fork with 120 mm travel (GRIP damper, 44 mm offset, Boost 15x110 mm). In combination with the Niner 29" wheels (30 mm inner width) and Schwalbe Racing Ray / Racing Ralph Super Ground TLE Evo tires, you get a fast yet versatile setup for cross-country, marathon, and more aggressive tours.

Propulsion is provided by a SRAM Eagle 1x12 drivetrain with SX Eagle rear derailleur & trigger, SRAM PG-1210 11–50T cassette, and SRAM X1 1K Eagle DUB crank with a 32-tooth chainring. The wide gear range gives you enough reserve for steep climbs without sacrificing top speed on flat terrain.

Braking is handled by a SRAM Level disc brake and G2CS brake rotors (180/160 mm). The Race Face Aeffect R handlebar (780 mm, 20 mm rise, 35 mm clamp) and short 40 mm stem provide a direct, trail-ready cockpit. Niner saddle, Niner seatpost, and Niner Grrrips complete the coherent package.

Note on Tubeless Setup: Wheels are already tubeless-ready (tubeless mounting without tube, sealant is included but not yet filled). The bike is delivered without air in the system – fill with sealant, inflate, and ride.

Further information directly from Niner: https://www.ninerbikes.com/air-9-2-star-sram-sx-eagle/

Size Chart (according to Niner):

• Size M: for body height 1.73-1.83 m
• Size L: for body height 1.80-1.91 m

Highlights:

• Hydroformed 6061-T6 Aluminum Frame: stiff, durable, and comfort-oriented – Niner's proven hardtail chassis.
• "Trail Country" Geometry: mix of XC efficiency and trail stability – ideal for long climbs and technical descents.
• Fox 32 Float 29" Fork: 120 mm travel, GRIP cartridge, 44 mm offset, Boost 15x110 mm.
• SRAM 1x12 Eagle Drivetrain: SX Eagle derailleur & shifter, 11–50T Eagle cassette, 32T crank – wide range, easy operation.
• Niner 29" Wheels: 30 mm inner width, Boost, 6-bolt – plenty of tire volume and lateral grip.
• Schwalbe Racing Ray / Racing Ralph Super Ground TLE Evo: fast, tubeless-ready XC/Marathon tires for front and rear performance.
• SRAM Level Brakes: reliable two-piston disc brake with 180/160 mm rotors.
• Race Face Aeffect R Cockpit: 780 mm handlebar (20 mm rise, 35 mm clamp) and 40 mm stem for precise handling.

Technical Data:

• Model: Niner AIR 9 Hardtail 29"
• Model Year: 2023
• Frame: Niner Hydroformed & Welded 6061-T6 Aluminum
• Colors: Silver / Baja Blue
• Available Sizes: M, L
• Weight: 11.8 kg (Size M, without pedals)

Suspension & Frame:

• Fork: Fox 32 Float Rhythm 29", 120 mm travel, GRIP damper, 44 mm offset, 15x110 mm Boost
• Wheel Size: 29"
• Front Axle System: 15x110 mm (Boost)
• Rear Axle System: 12x148 mm (Boost)
• Brake Rotor Mount: 6-bolt (front/rear)
• Tire Clearance: designed for 29" x up to approx. 2.4" (manufacturer's specification; also compatible with 27.5+)
• Headset: Niner Internal, SHIS ZS44/28.6 (top) | ZS56/40 (bottom)
• Seatpost Diameter: Niner Seatpost (standard Ø, frame-specific; dropper-ready with internal routing)

Drivetrain & Shifting:

• Drivetrain Type: 1x12
• Rear Derailleur: SRAM SX Eagle 12-speed
• Shifter: SRAM SX Eagle 12-speed
• Cassette: SRAM PG-1210, 11–50 teeth
• Chain: SRAM NX Eagle 12-speed
• Crank: SRAM X1 1K Eagle DUB, 32 teeth (Sizes M/L with 170 mm crank arm length)
• Bottom Bracket: SRAM DUB PF30
• Front Derailleur: not installed (1x setup)

Brakes:

• Brake System: SRAM Level (hydraulic disc brake)
• Brake Rotors: SRAM G2CS, 180 mm front / 160 mm rear

Wheels & Tires:

• Front Wheel: Niner Alloy 29", alloy clincher, 30 mm inner width, 15x110 mm, 6-bolt
• Rear Wheel: Niner Alloy 29", alloy clincher, 30 mm inner width, 12x148 mm, 6-bolt
• Front Tire: Schwalbe Racing Ray Super Ground, TLE Evo
  (Due to supply issues, Schwalbe Nobby Nic may also be installed)
• Rear Tire: Schwalbe Racing Ralph Super Ground, TLE Evo
  (Due to supply issues, Schwalbe Nobby Nic may also be installed)
• Tubeless Status: Tubeless mounted without air, sealant included (needs to be filled)

Cockpit & Contact Points:

• Handlebar: Race Face Aeffect R, 780 mm wide, 20 mm rise, 35 mm clamp
• Stem: Race Face Aeffect R, 40 mm, 35 mm clamp
• Grips: Niner Grrrips L/O, soft nylon compound
• Saddle: Niner Custom, CR-MO rails, embossed Niner logo
• Seatpost: Niner (rigid, dropper-ready frame)

Delivery without pedals

The Niner AIR 9 29" combines a lightweight aluminum frame, Fox performance suspension, and SRAM Eagle 12-speed into a versatile hardtail that feels equally at home on marathons, fast home trails, and long tours.