AIR 9 RDO Carbon Fiber Hardtail Bike (2024)

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AIR 9 RDO Carbon Fiber Hardtail Bike (6)

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AIR 9 RDO Carbon Fiber Hardtail Bike (9)

AIR 9 RDO Carbon Fiber Hardtail Bike (11)

Elevate your ride

Build your AIR 9 RDO

Lighter and brighter

Our flagship carbon fiber hardtail: AIR 9 RDO

Niner’s purest expression of light, stiff Race Day Optimized carbon fiber rules the racecourse. This efficient yet compliant frame makes the most of carbon’s unique properties to give you the best ride, no matter if you’re gunning for a podium or cruising local singletrack.

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Exquisite engineering

Niner's history is rooted in the evolution of mountain biking. From the introduction of our first hardtail more than a decade ago, we've worked tirelessly to push the limits of what people think is possible when it comes to the construction, geometry and handling of premium bicycles. The [R]Evolution that began with the RKT 9 RDO continues with the new AIR 9 RDO. Your big wheel obsession is now faster and more refined.

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Designed for the ride

The new AIR 9 RDO is our expression of the classic twenty-niner carbon hardtail. We've learned so much since the early days and applied that knowledge of geometry and materials to meet the ever-changing demands and riding styles of the modern mountain biker. The result? Our best race and high performance hardtail to date. The AIR 9 RDO embodies all the versatility, durability and performance you've come to expect from Niner.

This frame's identity is refreshed with a bold design aesthetic. Continuing the lineage that began with RKT 9 RDO, the strong, overbuilt shapes that define the front triangle are made for stiffness and pedaling efficiency. But to keep the ride smooth, sleek tubes along the length of the co*ckpit and seatstays are slender and subtly curved. Topping it off, a 27.2mm seatpost offers rearward flex to take the edge of bumps in the trail.

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Have it your way

If ultralight simplicity, clean appearance (and a hard workout) are your jam, set up your AIR 9 RDO as a singlespeed. This frame is compatible with our BioCentric 30 bottom bracket system. You can set up your bike with a single cog and chainring, then tension the chain easily with our patented eccentric BB insert. We’ve been purist mountain bikers from the early days of 29-inch wheels and this frame has been one of our most popular for just this reason.

The PF30 bottom bracket shell gives us plenty of options with regard to drivetrain, no matter your preference. And if you run a geared drivetrain, internal cable routing is super sano and easy to maintain. Even better, this frame is ready for the future with ports to use Di2 electronic shifters.

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AIR 9 RDO Carbon Fiber Hardtail Bike (15)

RDO carbon fiber

Carbon fiber is common, but care, quality and attention to detail are not. Niner RDO carbon fiber is a cut above. We start with the best grades of raw carbon layered precisely according to the stress points on the frame structure. In construction, our process employs rigid internal molds and results in tighter, more consistent compaction of the carbon fabric. The result? Increased precision in wall thickness and reduced resin pooling in the final product. We can build more elaborate structures with better ride tuning, increased strength, outstanding durability, and less weight.

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RDO carbon fiber

Niner’s premium Race Day Optimized carbon fiber means more strength, higher stiffness, and less weight. Read More

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Internal cable routing

Clean internal cable routing for shifter and brake lines through the frame for easy installation and maintenance.

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Protection where you need it

Factory installed, integrated frame protection to keep your ride safe from harm, even when you’re in over your head.

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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

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Tire clearance

Need room to roam? We got it. The AIR 9 RDO has clearance to run your choice of 29er tires.

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"I am not sure what magic Niner worked into the frame, but it manages to be stiff without beating the s@$t out of you."

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"Speed is the name of the game when it comes to Niner's Air 9 RDO."

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"The superbly efficient suspension platform and climbing capabilities are a sure recipe for speed on the flats and climbs."

AIR 9 RDO Carbon Fiber Hardtail Bike (24)

"Spoiler alert this purpose-built XC race machine isn't just a bike, it's a trail weapon!"

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$2,449.00 $1,599.99

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SKU

AIR-9-RDO

Out of Stock Estimated Return Date:

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AIR 9 RDO 4-STAR SHIMANO XT Specifications

This 4-Star Shimano XT AIR 9 RDO is dressed for success with a 100mm travel suspension fork, Shimano XT drivetrain, and DT Swiss XR 1700 SPLINE 25 wheels. No excuses - get out and ride!

  • DT Swiss XR 1700 SPLINE 25 wheels
  • FOX 32 SC Float Factory FIT 4 EVOL fork w/Kashima coat, remote lockout, 100mm travel
  • Shimano XT 2-piston "race" brakes
Available frame sizes XS, SM, MD, LG, XL Available colors Satin Carbon/Silver, ULTRAVIOLET/GREY
Frame NINER RDO CARBON FIBER, INTERNAL CABLE ROUTING, PF30 BB, SINGLE-SPEED COMPATIBLE Fork FOX 32 SC FLOAT FACTORY EVOL FIT4, W/ REMOTE L/O, KASHIMA COAT, 100MM, 110X15MM, 44MM OFFSET
Shock N/A Tubes / Sealant
Front wheel DT Swiss XR 1700 SPLINE, aluminum clincher, 25mm internal, 110x15mm, centerlock Rear wheel DT Swiss XR 1700 SPLINE, aluminum clincher, 25mm internal, 148x12mm, centerlock, ratchet system 36 SL
Front Tire SCHWALBE RACING RAY EVO SUPER TERRAIN TLE ADDIX SPEEDGRIP 2.35 Rear tire SCHWALBE RACING RALPH EVO SUPER TERRAIN TLE ADDIX SPEED 2.35
Brakes SHIMANO XT M8100, METAL PAD W/ FIN Brake levers SHIMANO XT M8100
Brake rotors 180/160 MT800 ROTORS Chain SHIMANO XT M8100 W/ QUICKLINK
Front shifter N/A Rear shifter SHIMANO XT M8100 12SP I-SPEC EV
Front derailleur N/A Rear derailleur SHIMANO XT M8100 SGS 12SP
Cassette SHIMANO XT M8100 12SP, 10-51T Crankset RACEFACE NEXT R CARBON 12SP, 32T (XS/S - 170MM, M/L/XL - 175MM)
Bottom bracket RACEFACE PF30 Saddle NINER CUSTOM WITH CRN-TI RAILS, EMBOSSED NINER GRAPHIC
Seatpost NINER RDO SEAT POST, 400MM, NINER GRAPHIC Handlebar NINER FLAT TOP RDO, 780MM, NINER GRAPHIC
Stem NINER RDO STEM, NINER GRAPHIC (XS/S/M- 80MM, L/XL- 90MM) Headset NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40
Grips NINER GRRRIPS L/O SOFT COMPOUND

We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.

GEOMETRY CHART

TECHNICAL SPECIFICATIONS

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AIR 9 RDO Carbon Fiber Hardtail Bike (2024)
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