Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2021 Niner AIR 9 RDO 3-Star
Previous used estimate
$1,501 - $1,544
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Niner AIR 9 RDO 3-Star
12-month projected trend
12%
Direction and magnitude, not judgment
vs. category average
6%
Drops faster than category avg
Price over time - 2021 Niner AIR 9 RDO 3-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 3-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. Expect the best from our popular 3-star SRAM GX Eagle build. Mated to the AIR 9 RDO frame and a FOX suspension fork, every feature of our race-chasing carbon hardtail frame is fully expressed. - DT Swiss X 1900 SPLINE 25 wheels - FOX 32 SC Float Factory EVOL FIT 4 fork w/remote lockout, 100mm travel - SRAM G2 R brakes
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Fox 32 SC Float Factory EVOL Fit 4, w/Remote L/O, Kashima Coat, 100mm, 110x15mm, 44mm Offset
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Niner Alloy Stem, Niner Graphic
- Product Family
- AIR
- Component Chain
- SRAM GX 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 R
- Component Pedals
- Sold separately
- Component Rotors
- 180/160mm Centerline X
- Component Saddle
- Niner Custom With Cr-Mo Rails, Embossed Niner Graphic
- Component Headset
- Niner Integrated SHIS Description IS42/28.6|IS52/40
- Component Crankset
- SRAM Descendant 7K Eagle DUB 32T
- Component Seatpost
- Niner Carbon Seat Post, 400mm, Niner Graphic
- Component Shifters
- SRAM GX Eagle 12sp
- Component Handlebar
- Niner Flat Top RDO, 780mm, Niner Graphic
- Component Wheel Set
- Front: DT Swiss X 1900 Spline 25, Center Lock 110x15mm Rear: DT Swiss X 1900 Spline 25, Center Lock, 148x12mm
- 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 Nylon Soft Compound
- Component Brake Levers
- SRAM G2 R
- Component Bottom Bracket
- SRAM DUB PF30
- Component Rear Derailleur
- SRAM GX Eagle 12sp
- Component Accessories Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Component Cassette Freewheel
- SRAM Eagle XG 1275, 10-52T
- Crankset
- SRAM Descendant 7K Eagle DUB 32T
- Pedals
- Sold separately
- Bottom Bracket
- SRAM DUB PF30
- Chain
- SRAM GX Eagle 12sp
- Seatpost
- Niner Carbon Seat Post, 400mm, Niner Graphic
- Saddle
- Niner Custom With Cr-Mo 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 GX Eagle 12sp
- Stem
- Niner Alloy Stem, Niner Graphic
- Accessories & Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Brake Levers
- SRAM G2 R
- Brakes
- SRAM G2 R
- Fork
- Fox 32 SC Float Factory EVOL Fit 4, 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 GX Eagle 12sp
- Tape/Grips
- Niner Grrrips L/O Nylon Soft Compound
- Color
- Sand/Orange
- Size
- X-Large
- Cassette/Freewheel
- SRAM Eagle XG 1275, 10-52T
- Rotors
- 180/160mm Centerline X
- Wheel Set
- Front: DT Swiss X 1900 Spline 25, Center Lock 110x15mm Rear: DT Swiss X 1900 Spline 25, Center Lock, 148x12mm
- 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.