Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
2019 Niner AIR 9 RDO 3-Star GX Eagle
Value Guide market data · 2019 Niner AIR 9 RDO 3-Star GX Eagle
12-month trend
12%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2019 Niner AIR 9 RDO 3-Star GX Eagle
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All AIR 9 model years
2019 AIR 9 RDO 3-Star GX Eagle lineup
Overview
About this bike
2019 Niner AIR 9 RDO 3-Star GX Eagle value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- Fork
- FOX 32 SC FLOAT FACTORY FIT4, W/ REMOTE L/O, KASHIMA COAT, 51MM OFFSET
- Frame
- NINER RDO CARBON COMPACTION SYSTEM, INTERNAL CABLE ROUTING, MAX TIRE 29 X 2.4"
Drivetrain
- Groupset
- 2019 Niner AIR 9 RDO 3-Star GX Eagle
- Crankset
- SRAM DESCENDANT 7K EAGLE DUB
- Bottom Bracket
- SRAM DUB PF30
- Chain
- SRAM GX EAGLE 12SP
- Rear Derailleur
- SRAM GX EAGLE 12SP
- Cassette/Rear Cogs
- SRAM EAGLE XG 1275, 10-50T
- Chainrings
- 32T
- Shifters
- SRAM GX EAGLE 12SP
Brakes
- Brake Levers
- SRAM GUIDE R
- Brakes
- SRAM GUIDE R | 180/160MM SRAM G2CS ROTORS
Cockpit
- Saddle
- NINER CUSTOM WITH CHRO-MO RAILS, EMBOSSED NINER GRAPHIC
- Headset
- NINER INTEGRATED SHIS IS42/28.6|IS52/40
- Stem
- NINER ALLOY STEM, NINER GRAPHIC
- Handlebars
- NINER FLAT TOP RDO, 780MM, NINER GRAPHIC
- Seat Post
- NINER CARBON SEAT POST, 370MM, NINER GRAPHIC
- Tape/Grips
- NINER GRRRIPS L/O NYLON
Wheels & Tires
- Hubs
- STAN'S NEO
- Tires
- Front: MAXXIS REKON 3C/EXO/TR 29 x 2.4" WT<br>Rear: MAXXIS REKON RACE 2C/EXO/TR 29 x 2.25"
- Axles
- Front: 15 x 110mm<br>Rear: 12 x 148mm
Accessories
- Rims/Wheels
- STAN'S NOTUBES ARCH S1
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork lowers and rear shock service intervals; ask for the most recent service receipts.
Inspection
Frame pivots & bearings
Cycle the suspension off the bike to feel for play, grit, or noise in pivot bearings.