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AIR 9 RDO

Elevate your ride

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.

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.

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 cockpit 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.

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.

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.

RDO carbon fiber

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

Internal cable routing

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

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.

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

Tire clearance

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

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

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

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

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

AIR 9 RDO

$0.00
In stock
SKU
AIR-9-RDO

AIR 9 RDO 5-STAR SRAM X01 AXS LTD Specifications

The ultimate in race-ready performance is evoked by our 5-Star SRAM X01 Eagle AXS LTD build kit. With a FOX 32 Stepcast remote lockout fork, you will float to the top of the podium.

  • DT Swiss XRC 1200 SPLINE 25 carbon wheels
  • SRAM X01 Eagle AXS wireless drivetrain
  • FOX 32 SC Float Factory FIT 4 fork, 100mm travel with remote lockout
Available frame sizes XS, S, M, L, XL Available colors SATIN CARBON/SILVER OR SAND/ORANGE
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 STANS NO TUBES SEALANT (2 X 2oz BOTTLES)
Front wheel DT SWISS XRC 1200 SPLINE 25, CENTERLOCK, 110X15MM Rear wheel DT SWISS XRC 1200 SPLINE 25, CENTERLOCK, 148X12MM, RATCHET EXP 36
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 SRAM G2 ULTIMATE Brake levers SRAM G2 ULTIMATE
Brake rotors 180/160 CENTERLINE X ROTORS Chain SRAM XX1 EAGLE 12SP RAINBOW
Front shifter N/A Rear shifter SRAM AXS EAGLE 12SP
Front derailleur N/A Rear derailleur SRAM X01 AXS EAGLE 12SP
Cassette SRAM EAGLE XG 1299, 10-52T RAINBOW Crankset SRAM X1 EAGLE CARBON DUB, 32T
Bottom bracket SRAM DUB 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 Headset NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40
Grips NINER GRRRIPS L/O SOFT COMPOUND Approximate weight 21.7lbs / 9kg*

GEOMETRY CHART
TECHNICAL SPECIFICATIONS