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AIR 9

Durable, affordable, aluminum

To AIR 9 is human

An aluminum hardtail with the DNA of a trail bike

If a cross-country race bike met a rugged trail bike in the woods, their love child might look a lot like our AIR 9 aluminum hardtail. This bike blends the agility and efficiency of a pedal-friendly XC bike with the versatility, toughness and capability of a rowdy trail rig.

Versatility x durability = maximum fun factor

Let's face it. The AIR 9, Niner's lightweight aluminum hardtail, has always been capable. So how do you make capable even better? For one thing, we keep the excellent qualities of Niner's tried and true, hydroformed aluminum. Lightweight and snappy, poppy and peppy, the AIR 9 has plenty of stiffness to get you up to speed when you stomp on the pedals.

Next, apply our [R]evolution geometry which puts the rider in the sweet, balanced spot on the bike and the ride experience goes up, way up. Then, add Boost 148 spacing because tire and wheel options are a good thing. Top it off with internal routing for a dropper post and you've made one capable bike even more capable.

Run it geared. Run it singlespeed. Comfortable enough for all day riding and quick enough to pin it at the races, the new AIR 9 handles what you throw at it. Genetically engineered? Maybe not. But it sure is fun to ride.

Not just any old aluminum

This modern metal alloy is tried and true. We’ve been working with aluminum and other alloys for more than a decade, and we’re proud of our know-how. The resulting hydroformed AIR 9 frame makes the most of the material properties to blend stiffness and comfort in a durable package.

Fitted with a 120mm fork and with room for oversized, 29x2.4” (or 27.5x3.0”) tires, this bike is fit for any trail. It’s optimized for modern trail riding, long days in the saddle, and all around good times.

“Trail country” geometry

Blurring the lines between modern trail bike geometry and traditional cross-country geometry, the AIR 9 occupies a niche we lovingly call “trail country.” If you’re doing a combination of long pedaling rides, stiff climbs, extended descents, and spicy technical sections, you’ll love what we’ve done here. “Trail country” geometry translates to modern trail manners when you need them most, with no sacrifice of efficiency or agility.

The roomy cockpit has a comfortable reach for short stem lengths, giving you quick handling and plenty of maneuverability to blast through rock gardens and cut hard corners. The steep 74-degree seat angle gets you centered over the BB for climbing and pairs nicely with the short 430mm chainstay length for supreme pedaling efficiency.. And of course, the slack, 68-degree head tube angle and long wheelbase contribute stability and self-confidence when you’re dropping into the steepest lines.

Tire clearance

Need room to roam? We got it. The AIR 9 has clearance to run your choice of 29er or 27.5+ wheels and tires.

Lifetime warranty

Ride, race, rally. We have you covered with warranty service, small parts, and a support team that actually answers the phone. Read More

Biocentric 30

Do you yearn for simplicity? Our patented BioCentric bottom bracket system gives you the freedom to easily go single-speed or geared. Read More

Protection where you need it

We use the smoothest, most durable pivot bearings in the industry. Made by Enduro, they’re built for life. Read More

Hydroformed aluminum frame

Welded, hydroformed aluminum yields a strong, lightweight frame with tube shapes for optimized ride quality.

AIR 9

$630.00
In stock
SKU
AIR-9

AIR 9 3-STAR SHIMANO SLX SINGLESPEED Specifications

Looking for a dose of simplicity, light weight, silence, and single-speed gearing? Try this 3-Star Shimano SLX single-speed build kit.

  • Marzocchi Bomber Z2 Rail suspension fork, 120mm
  • Race Face bar and stem
  • Shimano SLX cranks and Niner Cogalicious single-speed drivetrain
Available frame sizes XS, S, M, L, XL Available colors SILVER/BAJA BLUE
Frame NINER HYDROFORMED AND WELDED 6061-T6 ALUMINUM Fork MARZOCCHI BOMBER Z2 RAIL, 120MM, 110X15MM, 44MM OFFSET
Shock N/A Tubes / Sealant STANS NO TUBES SEALANT (2 X 2oz BOTTLES)
Front wheel NINER ALLOY, 30MM INTERNAL, 110X15MM  Rear wheel NINER ALLOY, 30MM INTERNAL, 148X12MM
Front Tire SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6 Rear tire SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35
Brakes SHIMANO XT M8100, METAL PAD W/FIN Brake levers SHIMANO XT M8100
Brake rotors 180/160MM SHIMANO XT RT-86 Chain SRAM 1 SP
Front shifter N/A Rear shifter N/A
Front derailleur N/A Rear derailleur N/A
Cassette NINER COGALICIOUS, 20T Crankset SHIMANO SLX M7000, 32 T
Bottom bracket NINER BIOCENTRIC 30 Saddle NINER CUSTOM WITH CR-MO RAILS, EMBOSSED NINER GRAPHIC
Seatpost NINER ALLOY SEAT POST, 370MM, NINER GRAPHIC Handlebar RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP
Stem RACE FACE AEFFECT R 40MM, 35MM CLAMP Headset NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40
Grips NINER GRRRIPS L/O NYLON SOFT COMPOUND Approximate weight 20.9 lbs

GEOMETRY CHART
TECHNICAL SPECIFICATIONS