There is a severe worldwide shortage of bikes. Click the button below to be notified when a particular bike becomes available.
Niner AIR 9 RDO 2-Star SRAM SX Ealge Mountain Bike (2021)
World Wide Shortage of Bikes
Due to unprecedented worldwide demand for bicycles, component part shortages, and significant global supply chain disruptions, all Niner bikes are subject to availability at the time your order is placed. Not all models and sizes are in stock and ready to ship. Please contact us for more information on availability, lead times, and to place your order by emailing info@BicycleWarehouse.com or by telephone at 888-231-2453 (BIKE). Thank you!
AIR 9 RDO 2-Star SRAM SX Eagle Mountain Bike
Lighter and Brighter
Niner's flagship carbon fiber hardtail, the AIR 9 RDO is back and better than ever. 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.
Niner's history is rooted in the evolution of mountain biking. From the introduction of their first hardtail more than a decade ago, they'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 Niner's expression of the classic twenty-niner carbon hardtail. They'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? Niner's 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 Niner's BioCentric 30 bottom bracket system. You can set up your bike with a single cog and chainring, then tension the chain easily with Niner's 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 you plenty of options with regard to drivetrain, no matter your preference. And if you run a geared drivetrain, internal cable routing is super clean 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. They start with the best grades of raw carbon layered precisely according to the stress points on the frame structure. In construction, Niner's 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. Niner can build more elaborate structures with better ride tuning, increased strength, outstanding durability, and less weight.
- Niner alloy wheels, 25mm inner width
- FOX 32 Float Rhythm GRIP EVOL fork, 100mm travel
- SRAM Level brakes
RDO Carbon Fiber
Niner’s premium Race Day Optimized carbon fiber means more strength, higher stiffness, and less weight.
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.
Need room to roam? We got it. The AIR 9 RDO has clearance to run your choice of 29er tires.
Ride, race, rally. We have you covered with warranty service, small parts, and a support team that actually answers the phone.
|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 FLOAT RHYTHM GRIP EVOL, SWEEP ADJUST, 100MM, 110X15MM, 51MM OFFSET|
|SHOCK||N/A||TUBES / SEALANT||STANS NO TUBES SEALANT (2 X 2OZ BOTTLES)|
|FRONT WHEEL||NINER ALLOY, 25MM INNER WIDTH, 110X15MM||REAR WHEEL||NINER ALLOY, 25MM INNER WIDTH, 148X12MM REAR|
|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 LEVEL||BRAKE LEVERS||SRAM LEVEL|
|BRAKE ROTORS||180/160MM G2CS ROTORS||CHAIN||SRAM SX EAGLE 12SP|
|FRONT SHIFTER||N/A||REAR SHIFTER||SRAM SX EAGLE 12SP|
|FRONT DERAILLEUR||N/A||REAR DERAILLEUR||SRAM SX EAGLE 12SP|
|CASSETTE||SRAM PG 1230 11-50T||CRANKSET||SRAM X1 1K EAGLE DUB, 32T|
|BOTTOM BRACKET||SRAM DUB PF30||SADDLE||NINER CUSTOM WITH CHRO-MO RAILS, EMBOSSED NINER GRAPHIC|
|SEATPOST||NINER ALLOY SEAT POST, 400MM, NINER GRAPHIC||HANDLEBAR||NINER FLAT TOP ALLOY, 780MM, NINER GRAPHIC|
|STEM||NINER ALLOY STEM, NINER GRAPHIC||HEADSET||NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40|
|GRIPS||NINER GRRRIPS L/O NYLON SOFT COMPOUND||APPROXIMATE WEIGHT|
|FRAME FITTINGS AND MOUNTS||All sizes have two bottle mounts inside front triangle; Titanium frame guards||REAR SUSPENSION TRAVEL||n/a|
|MAXIMUM FRONT SUSPENSION||120MM||FORK OFFSET||44MM|
|SHOCK SIZE||N/A||SHOCK MOUNTING HARDWARE
|SUGGESTED SHOCK SAG||N/A||SEATPOST SIZE||27.2|
|SEAT COLLAR SIZE||31.8||CABLE ROUTING||FULL SLEEVE INTERNAL CABLE ROUTING|
|FRONT DERAILLEUR||34.9 SIDE SWING, FRONT PULL FRONT DERAILLEUR||HEADSET SIZE||1.125" X 1.5" TAPERED INTEGRATED (CAMPY STYLE) HEAD TUBE, HEADSET INCLUDED, CANE CREEK DESCRIPTION: IS42/28.6 | IS52/40|
|PIVOT BEARING SPECS||N/A||CHAINRING COMPATIBILITY||COMPATIBLE WITH STANDARD 1X, 2X AND 3X SYSTEMS|
|MAXIMUM CHAINRING SIZE||1X MAX CHAIN RING SIZE: 36T - BOOST CHAINRING RECOMMENDED||Q-FACTOR||168MM|
|ISCG COMPATIBILITY||N/A||BOTTOM BRACKET TYPE||73MM PF30 BB SHELL (ADAPTERS REQUIRED FOR BSA TYPE BBS)|
|BIOCENTRIC COMPATIBLE?||YES||BRAKE MOUNT TYPE||POST MOUNT|
|MAXIMUM REAR ROTOR SIZE||180MM||REAR WHEEL SPACING||BOOST 148X12MM|
|REAR WHEEL THROUGH-AXLE SPEC||M12X1.75PX182L||FRONT WHEEL AXLE SPACING||BOOST 110X15MM|
|FRONT WHEEL THROUGH-AXLE SPEC||MAX TIRE SIZE||29X2.4|