2020 Niner

AIR 9 - 2-Star NX Eagle - 29

A 27.5″ / 29″ aluminum frame hardtail trail bike with upper mid-range components.
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Manufacturer Price

$1,950
Weight26.5 lbs  
FrameAluminum
SuspensionHardtail, 120mm
ForkMarzocchi Bomber Z2
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle
BrakesHydraulic Disc
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Accessories
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

AIR 9 - 2-Star NX Eagle - 29

26 mph

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Highest gear

(descending)

Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

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Reviews
Bicycling
First Look: Choose Your Wheel Size With The New Niner Air 9 Hardtail Mountain Bike

Aug 2017 · Ron Koch

Niner updates two aluminum models, adds new colors and goes SRAM 1x with all its Star builds.

Read Review

MTBR
2017 Niner AIR 9 RDO

May 2016

Merging the pedaling efficiency of first RDO and the ride quality of the second, this third iteration modernizes the geometry to create an attractive XC racing hardtail. - Mtbr.com

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Niner hydroformed and welded aluminum

BB StandardPF30, 73mm, Press Fit

Tire Clearance2.4"

Fork

Marzocchi Bomber Z2, 120MM, 110X15MM, 51MM OFFSET

Travel120mm

Spring TypeAir

Shock

N/A

Spring TypeAir

Bottom Bracket

73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB

Headset

NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40

Stem

RACE FACE AEFFECT R 40MM, 35MM CLAMP

Handlebar

RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP

Saddle

NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC

Seatpost

NINER ALLOY SEAT POST, 370MM, NINER GRAPHIC

TypeRigid

Grips

NINER GRRRIPS L/O NYLON FLANGED

Groupset
Rear Derailleur

SRAM NX EAGLE 12SP

Front Derailleur

N/A

Crank

SRAM NX EAGLE DUB 32T

Shifters

SRAM NX EAGLE 12SP

Cassette

SRAM PG 1230 11-50T

Chain

SRAM NX EAGLE 12SP

Brakes

SRAM LEVEL

TypeHydraulic Disc

Brake Levers

SRAM LEVEL

Wheels
Rims

Front: NINER ALLOY, 110X15MM FRONT, NINER GRPHIC, Rear: NINER ALLOY, 148X12MM REAR, NINER GRAPHIC

Tires

Front: MAXXIS MINION DHF 3C/EXO/TR 29x 2.5 WT, Rear: MAXXIS REKON 3C/EXO/TR 29x2.4 WT

Disc Rotors

180/160MM SRAM G2CS ROTORS

Rider Notes
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Last updated February 21
Not listed for 1,520 days