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NinerAIR 9
AIR 9 2-Star SX Eagle Mountain Bike

Temporarily Out Of Stock

Item # NNR99AF

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Why We Like The AIR 9 2-Star SX Eagle Mountain Bike

Designed for the rough and tumble of modern cross-country riding without breaking the bank is the Niner Air 9 2-Star SX Eagle Mountain Bike. This budget-friendly hardtail from Niner proves we don't need a blinged-out race machine to go fast on the singletrack. Well specced parts from Niner are provided to keep rolling speeds high and fun at a maximum. With the affordable Niner Air 9 we're exploring the local trail scene and maybe dipping our toes into the cross-country race scene waters too.

Geometry designed for the Niner Air 9 is fit for a cross-country or trail machine, but either way, we're comfortable ripping new trails near and far. Though the Air 9 might be built on a budget we're seasoned enough to know that geometry is where it really counts. A well-performing bike is going to have a head-tube and seat-tube that compliment the riding style desired and the Air 9 ticks all those boxes. A 68-degree head-tube angle adorns the bike, meaning it sits right in the middle of slack and aggressive, making it great for long forays into the woods or those shorter cross-country events. Niner has also lengthened the seat-stays with the Air 9, giving it more tire clearance in the rear and more stability as well.

When we're not flying through undulating trails we're probably climbing super steep walls, and that's when we're thankful for the immense amount of range we get with the Eagle 12-speed drivetrain. A new Manitou Fork works on the front end and uses the proven and popular Z2 rail damper to keep things in control out front. The 120mm of suspension is well needed and we use every bit of it out on trail. Well specced SRAM brakes are provided with a 160mm rotor in the rear and 180mm in the front to provide control and composure along all sorts of trail conditions.

When Niner set out to get people back on bikes they probably didn't expect as much love for the Niner Air 9 2-Star Eagle build as we're happy giving it. This wallet-friendly build is an excellent choice for those of us just getting into the sport and want a robust aluminum frame with proven components. Eagle drivetrain parts are easy to find replacements for thanks to their large ecosystem of compatible parts. The Manitou fork uses proven materials and methods to gets us through while in-house Niner components make up the rest of this quality build. We'll be taking on new trails in our backyard and finding excuses to get out on bigger excursions during the weekends aboard our Niner Air 9.

  • No excuse cross-country bike for aggressive riding on unpredictable terrain
  • Aluminum frame is robust and relishes fast riding
  • SRAM Eagle drivetrain offers 12 gears and impressive range
  • SRAM brakes with well-specced rotors bring safety to our ride
  • Manitou fork uses proven materials and components
  • Niner finishing kit provides wheels, saddle, and cockpit parts
  • Schwalbe rubber is ultra-sticky and laced with sidewall protection

Tech Specs
Frame Materialaluminum
ForkMarzocchi Bomber Z2 Rail
Front Travel120mm
HeadsetNiner Integrated IS 42/52
ShiftersSRAM SX Eagle
Rear DerailleurSRAM SX Eagle
CranksetSRAM X1 Eagle
Chainring Sizes32t
Bottom BracketSRAM DUB
CassetteSRAM PG1210
Cassette Range11-50t
ChainSRAM SX Eagle
BrakesetSRAM Level
Brake Typedisc hydraulic
Rotor Size[front] 180mm, [rear] 160mm
HandlebarRaceFace Aeffect R
Handlebar Width780mm
GripsNiner Grrrips
StemRaceFace Aeffect 35mm
Stem Length40mm
SaddleNiner Custom
SeatpostNiner Alloy
Seatpost Length370mm
WheelsetNiner Alloy
Front Axle15mm x 110mm
Rear Axle12mm x 148mm
Tire Clearance29in x 2.4in
Tires Schwalbe Nobby Nic, Evo, Super Trail, TLE, Addix, Speedgrip
Tire Size29in x 2.35in
Activitymountain biking, cross-country
Manufacturer Warranty[frame] lifetime

120mm Travel Fork

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