Niner AIR 9 - 2-Star SRAM SX Eagle

Name: Niner AIR 9 - 2-Star SRAM SX Eagle
Brand: Niner

2024 MountainTrail Manufacturer page

Niner AIR 9 - 2-Star SRAM SX Eagle, color Silver / Baja Blue

Last known price: $2,099

Prices shown first for United States
Fork travel: 120 mm
Wheels: 29″
Drivetrain: 1 × 12 32t / 11–50t
Gear range: 455%
Weight: 11.34 kg 25.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

Fork Travel (MM) Not informed
XS 156–166
SM 160–175
MD 173–183
LG 180–191
XL 191–201

Components

19 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Niner Hydroformed and Welded 6061-T6 Aluminum Not identified

Suspension

2 parts

Fork
- Fox 34
Rear shock

None

Drivetrain

7 parts

Brakes

3 parts

Brake levers
- SRAM Level
Brakes
- SRAM Level
Disc rotors

180/160mm G2CS Rotors Not identified

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 425mm

Stack 620mm

Wheelbase 1136mm

Head angle 68.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	—	395	410	425	445	465
Stackmm	—	610	610	620	634	652
Top tube lengthmm	—	570	585	603	627	652
Seat tube lengthmm	120	356	394	419	483	533
Head tube lengthmm	120	100	100	110	125	145
Head tube angle	—	68°	68°	68°	68°	68°
Seat tube angle	—	74°	74°	74°	74°	74°
Chainstay lengthmm	—	430	430	430	430	430
Wheelbasemm	—	1102	1117	1136	1162	1189
Front centermm	—	678	693	711	737	764
Bottom bracket dropmm	—	52	52	52	52	52
Bottom bracket heightmm	120	322	322	322	322	322
Standover heightmm	120	698	729	748	800	841
Fork rakemm	—	51	51	51	51	51
Trailmm	—	96	96	96	96	96
Stack/reach ratio	1.00	1.54	1.49	1.46	1.43	1.40

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 11.34 kg

25.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 84.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: PF30
Fork spring: Air
Tire clearance: Maximum tire width: 2.4″
Tire width: 2.6″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2024
Sample: 2,032 bicycles with this information
Coverage: 96.6% of the class

Lowest gear

18.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2024
Sample: 1,555 bicycles with this information
Coverage: 73.9% of the class

Highest gear

84.4 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2024
Sample: 1,555 bicycles with this information
Coverage: 73.9% of the class

Shifting

Mechanical

344 of 2,103 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2024
Sample: 2,103 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 32.3 km/h

Total gear range 455%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.6–84.4 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2024
Lowest gear: 1555 bicycles with this information, 73.9% of the class
Highest gear: 1555 bicycles with this information, 73.9% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2024 builds
Specification	This bicycle Niner AIR 9 - 2-Star SRAM SX Eagle	Niner AIR 9 RDO - 2-STAR SRAM SX Eagle	Niner AIR 9 RDO - 3-STAR SRAM GX Eagle	Niner AIR 9 RDO - 4-STAR Shimano XT
Frame
Frame material	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	11.34 kg	10.93 kg	Not informed	Not informed
Suspension
Front travel	120 mm	100 mm	100 mm	100 mm
Drivetrain
Smallest sprocket	11	11	10	10
Largest sprocket	50	50	52	51
Lowest gear	18.6 in	18.6 in	17.9 in	18.2 in
Highest gear	84.4 in	84.4 in	92.8 in	92.8 in
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Tire width	2.6″	2.35″	2.35″	2.35″