Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2021 Niner AIR 9 RDO 5-Star
Previous used estimate
$2,279 - $2,345
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Niner AIR 9 RDO 5-Star
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2021 Niner AIR 9 RDO 5-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 5-Star models
2 modelsChoose a different build or frame style to see its value.
Overview
About this bike
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. Our top of the line AIR 9 RDO frame meets a premium parts kit in the 5-Star SRAM X01 Eagle build. Roll lighter and faster, go farther, and stay out longer on DT Swiss XRC 1501 SPLINE 30 wheels. - DT Swiss XRC 1501 SPLINE 30 carbon wheels - FOX 32 SC Float Factory fork, 100mm travel with remote lockout - Niner RDO carbon flat top handlebar
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Fox 32 SC Float Factory EVOL FIT4, w/Remote L/O, Kashima Coat, 100mm, 110x15mm, 44mm Offset
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Niner RDO Stem, Niner Graphic
- Product Family
- AIR
- Component Chain
- SRAM X01 Eagle 12sp
- Component Color
- Satin Carbon/Silver, Sand/Orange
- Component Frame
- Niner RDO Carbon Fiber, Internal Cable Routing, PF30 BB, Single-Speed Compatible
- Component Brakes
- SRAM G2 RSC
- Component Pedals
- Sold separately
- Component Rotors
- 180/160 Centerline X Rotors
- Component Saddle
- Niner Custom With CrN-Ti Rails, Embossed Niner Graphic
- Component Headset
- Niner Integrated SHIS Description IS42/28.6|IS52/40
- Component Crankset
- SRAM X1 Eagle Carbon DUB 32T CNC Ring
- Component Seatpost
- Niner RDO Seat Post, 400mm, Niner Graphic
- Component Shifters
- SRAM X01 Eagle 12sp
- Component Handlebar
- Niner Flat Top RDO, 780mm, Niner Graphic
- Component Wheel Set
- Front: DT Swiss XRC 1501 Spline 30, Center Lock, 110x15mm Rear: DT Swiss XRC 1501 Spline 30 Center Lock, 148x12mm, Ratchet EXP 36
- Component Front Tire
- Front: Schwalbe Racing Ray EVO Super Terrain TLE Addix Speedgrip 2.35" Rear: Schwalbe Racing Ralph EVO Super Terrain TLE Addix Speed 2.35"
- Component Tape Grips
- Niner Grrrips L/O Soft Compound
- Component Brake Levers
- SRAM G2 RSC
- Component Bottom Bracket
- SRAM DUB PF30
- Component Rear Derailleur
- SRAM X01 Eagle Rear Derailleur 12sp
- Component Accessories Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Component Cassette Freewheel
- SRAM Eagle XG 1295, 10-52T
- Crankset
- SRAM X1 Eagle Carbon DUB 32T CNC Ring
- Pedals
- Sold separately
- Bottom Bracket
- SRAM DUB PF30
- Chain
- SRAM X01 Eagle 12sp
- Seatpost
- Niner RDO Seat Post, 400mm, Niner Graphic
- Saddle
- Niner Custom With CrN-Ti Rails, Embossed Niner Graphic
- Handlebar
- Niner Flat Top RDO, 780mm, Niner Graphic
- Headset
- Niner Integrated SHIS Description IS42/28.6|IS52/40
- Rear Derailleur
- SRAM X01 Eagle Rear Derailleur 12sp
- Stem
- Niner RDO Stem, Niner Graphic
- Accessories & Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Brake Levers
- SRAM G2 RSC
- Brakes
- SRAM G2 RSC
- Fork
- Fox 32 SC Float Factory EVOL FIT4, w/Remote L/O, Kashima Coat, 100mm, 110x15mm, 44mm Offset
- Frame
- Niner RDO Carbon Fiber, Internal Cable Routing, PF30 BB, Single-Speed Compatible
- Shifters
- SRAM X01 Eagle 12sp
- Tape/Grips
- Niner Grrrips L/O Soft Compound
- Color
- Sand/Orange
- Size
- X-Large
- Cassette/Freewheel
- SRAM Eagle XG 1295, 10-52T
- Rotors
- 180/160 Centerline X Rotors
- Wheel Set
- Front: DT Swiss XRC 1501 Spline 30, Center Lock, 110x15mm Rear: DT Swiss XRC 1501 Spline 30 Center Lock, 148x12mm, Ratchet EXP 36
- Front Tire
- Front: Schwalbe Racing Ray EVO Super Terrain TLE Addix Speedgrip 2.35" Rear: Schwalbe Racing Ralph EVO Super Terrain TLE Addix Speed 2.35"
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.