Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2021 Niner AIR 9 2-Star
Previous used estimate
$698 - $718
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Niner AIR 9 2-Star
12-month projected trend
13%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2021 Niner AIR 9 2-Star
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All AIR model years
Compare AIR 9 2-Star models
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Overview
About this bike
An aluminum hardtail with the DNA of a trail bike. If a cross-country race bike met a rugged trail bike in the woods, their love child might look a lot like our AIR 9 aluminum hardtail. This bike blends the agility and efficiency of a pedal-friendly XC bike with the versatility, toughness, and capability of a rowdy trail rig. Hit the trail on our 2-Star SRAM SX build kit, without a hit to your wallet. Thanks to SRAM's outstanding SX Eagle drivetrain, we can bring every ounce of AIR 9 performance to an affordable price level. - Marzocchi Bomber Z2 Rail suspension fork, 120mm - Race Face bar and stem - SRAM SX Eagle drivetrain
Specifications
- Subtype
- Cross Country
- Category
- Mountain
- Component Fork
- Marzocchi Bomber Z2 Rail, 120mm, 110x15mm, 44mm Offset
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Race Face Aeffect R 40mm, 35mm Clamp
- Product Family
- AIR
- Component Chain
- SRAM SX Eagle 12sp
- Component Color
- Silver/Baja Blue
- Component Frame
- Niner Hydroformed and Welded 6061-T6 Aluminum
- Component Brakes
- SRAM Level
- Component Pedals
- Sold separately
- Component Rotors
- 180/160mm SRAM G2CS Rotors
- 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 X1 1K Eagle Dub, 32T
- Component Seatpost
- Niner Alloy Seat Post, 370mm, Niner Graphic
- Component Shifters
- SRAM SX Eagle 12sp
- Component Handlebar
- Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp
- Component Wheel Set
- Front: Niner Alloy, 30mm Internal, 110x15mm Rear: Niner Alloy, 30mm Internal, 148x12mm
- Component Front Tire
- Front: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.6" Rear: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.35"
- Component Tape Grips
- Niner Grrrips L/O Nylon Soft Compound
- Component Brake Levers
- SRAM Level
- Component Bottom Bracket
- SRAM DUB PF30
- Component Rear Derailleur
- SRAM SX Eagle 12sp
- Component Accessories Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Component Cassette Freewheel
- SRAM PG1210 11-50T
- Crankset
- SRAM X1 1K Eagle Dub, 32T
- Pedals
- Sold separately
- Bottom Bracket
- SRAM DUB PF30
- Chain
- SRAM SX Eagle 12sp
- Seatpost
- Niner Alloy Seat Post, 370mm, Niner Graphic
- Saddle
- Niner Custom With Cr-Mo Rails, Embossed Niner Graphic
- Handlebar
- Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp
- Headset
- Niner Integrated SHIS Description IS42/28.6|IS52/40
- Rear Derailleur
- SRAM SX Eagle 12sp
- Stem
- Race Face Aeffect R 40mm, 35mm Clamp
- Accessories & Extras
- Stans No Tubes Sealant (2 x 2oz Bottles)
- Brake Levers
- SRAM Level
- Brakes
- SRAM Level
- Fork
- Marzocchi Bomber Z2 Rail, 120mm, 110x15mm, 44mm Offset
- Frame
- Niner Hydroformed and Welded 6061-T6 Aluminum
- Shifters
- SRAM SX Eagle 12sp
- Tape/Grips
- Niner Grrrips L/O Nylon Soft Compound
- Color
- Silver/Baja Blue
- Size
- X-Large
- Cassette/Freewheel
- SRAM PG1210 11-50T
- Rotors
- 180/160mm SRAM G2CS Rotors
- Wheel Set
- Front: Niner Alloy, 30mm Internal, 110x15mm Rear: Niner Alloy, 30mm Internal, 148x12mm
- Front Tire
- Front: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 2.6" Rear: Schwalbe Nobby Nic Evo Super Trail TLE Addix Speedgrip 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.