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2018 Niner

AIR 9 2-STAR

A 27.5″ aluminum frame hardtail trail bike with high-end components.

Manufacturer Price

$2,600
FrameAluminum
SuspensionHardtail, 120mm
ForkFox Rhythm Float 34
Wheels27.5″
Drivetrain1 × 12
GroupsetGX Eagle, Truvativ Stylo
BrakesSRAM Guide R Hydraulic Disc
SeatpostDropper
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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)

26 mph

AIR 9 2-STAR

26 mph

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Highest gear

(descending)

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.

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Singletrack World
Review: Niner AIR 9 Carbon

Oct 2016 · Wil Barrett

US brand Niner has been championing big wheels since 2005. So how does the AIR 9 Carbon stack up against the BMC Team Elite and Trek Procaliber?

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Bikerumor
Review: Niner Air 9 RDO floats like a dragonfly and stings like a really angry yellow jacket

Jul 2016 · Trey Richardson

With suspension technology changing faster than the choice for president, we have become accustomed to waking up in the morning to see what version of what suspension platform is ruling the world that day. Though not as intriguing, we sometimes forget that the simple characteristics of a tried and true hardtail are still as relevant …

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MTBR
2017 Niner AIR 9 RDO

May 2016 · Francis Cebedo

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

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Geometry
Specs
Build
Frame

AIR 9 - BLACK/NEON BLUE

BB StandardPF30, Press Fit

Fork

FOX 34 FLOAT RHYTHM GRIP EVOL, SWEEP ADJUST, 120MM, 110X15MM

Travel120mm

Spring TypeAir

Shock

N/A

Bottom Bracket

SRAM%20PF30

Headset

NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/41

Stem

RACE FACE AEFFECT R 50MM, 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

KS LEV SI

TypeDropper

Grips

NINER GRRRIPS L/O NYLON FLANGED

Groupset
Crank

SRAM STYLO 7K EAGLE PF30 32T

Shifters

SRAM GX EAGLE 12SP

Cassette

SRAM EAGLE XG 1275, 10-50T

Chain

SRAM GX EAGLE 12SP

Brakes

SRAM GUIDE R

TypeSRAM Guide R Hydraulic Disc

Brake Levers

SRAM GUIDE R

Wheels
Tires

29" MAXXIS ARDENT F60 SC 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8

Rider Notes
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First added March 30

Last updated March 30

Not listed for 2,992 days