Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2018 Niner AIR 9 RDO 4-Star
Previous used estimate
$1,245 - $1,281
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Niner AIR 9 RDO 4-Star
12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2018 Niner AIR 9 RDO 4-Star
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All AIR model years
Compare AIR 9 RDO 4-Star models
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Overview
About this bike
For a snappy whip that caters to podium-driven racers and personal record chasers alike, the AIR 9 RDO delivers lightweight responsiveness you'll appreciate on sustained, leg-busting efforts. The carbon frame's refined tubing shapes and modern geometry tweaks lend the AIR 9 RDO a smooth ride with powerful acceleration capability, while Boost hub spacing keeps the chainstays short while allowing for stronger wheels, giving you impressive tracking at speed over rough terrain. The 4-Star build comes race-ready with a Fox 32 Float Factory Kashima fork, an X01 Eagle 1x12 drivetrain paired to powerful Guide RSC hydraulic disc brakes, and Niner's own carbon RDO cockpit components. Tap into Niner's meaty mountain biking chops and see just how fast you can be on the AIR 9.
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Fox 32 Float SC Factory Fit4 w/remote lockout, Kashima Coat, 100mm
- Component Hubs
- Stan's NoTubes Neo
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Niner RDO Stem
- Product Family
- AIR
- Component Axles
- Front: 110x15mm Rear: 148x12mm
- Component Chain
- SRAM X01 Eagle 12sp
- Component Color
- CMYK, Orange
- Component Frame
- AIR 9 RDO carbon
- Component Brakes
- SRAM Guide RSC, 180/160mm Centerline rotors
- Component Saddle
- Niner Custom with CrN-Ti Rails, Embossed Niner Graphic
- Component Headset
- Niner Integrated SHIS IS42/28.6|IS52/40
- Component Cassette
- SRAM Eagle XG 1295, 10-50t
- Component Crankset
- SRAM X1 Eagle Carbon
- Component Shifters
- SRAM X011 Eagle 12sp
- Component Handlebar
- Niner Flat Top RDO, 780mm
- Component Seat Post
- Niner RDO Seat Post, 400mm
- Component Chainrings
- 32T
- Component Front Tire
- Front: Maxxis Ikon 3C/EXO/TR 29 x 2.35 Rear: Maxxis Ikon 3C/EXO/TR 29 x 2.20
- Component Tape Grips
- Niner Grips L/O Nylon
- Component Brake Levers
- SRAM Guide RSC
- Component Bottom Bracket
- SRAM PF30
- Component Rear Derailleur
- SRAM X01 Eagle 12sp
- Hubs
- Stan's NoTubes Neo
- Crankset
- SRAM X1 Eagle Carbon
- Bottom Bracket
- SRAM PF30
- Chain
- SRAM X01 Eagle 12sp
- Saddle
- Niner Custom with CrN-Ti Rails, Embossed Niner Graphic
- Handlebar
- Niner Flat Top RDO, 780mm
- Headset
- Niner Integrated SHIS IS42/28.6|IS52/40
- Rear Derailleur
- SRAM X01 Eagle 12sp
- Stem
- Niner RDO Stem
- Axles
- Front: 110x15mm Rear: 148x12mm
- Brake Levers
- SRAM Guide RSC
- Brakes
- SRAM Guide RSC, 180/160mm Centerline rotors
- Cassette
- SRAM Eagle XG 1295, 10-50t
- Chainrings
- 32T
- Fork
- Fox 32 Float SC Factory Fit4 w/remote lockout, Kashima Coat, 100mm
- Frame
- AIR 9 RDO carbon
- Seat Post
- Niner RDO Seat Post, 400mm
- Shifters
- SRAM X011 Eagle 12sp
- Tape/Grips
- Niner Grips L/O Nylon
- Color
- Orange
- Size
- X-Large
- Front Tire
- Front: Maxxis Ikon 3C/EXO/TR 29 x 2.35 Rear: Maxxis Ikon 3C/EXO/TR 29 x 2.20
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.