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Niner
JET 9 RDO 2-Star SX Eagle Mountain Bike

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

Some of our favorite bikes are the ones that can handle XC duties in a pinch while remaining a fun and practical everyday trail bike. That's why we love the Niner Jet 9 RDO. There's nothing better than a fast, spritely bike that rockets up the climbs, yet still has the confidence and stability to get those rowdy trails under your belt, and hit some jumps and drops along the way. Tapping into agility from its XC race roots and blending it with the ever-growing demand for longer and lower geometry for more fun up and down the mountain, the JET 9 is everything a core trail rider needs to get the most out of each and every ride.


As for the frame itself, Niner's Race Day Optimized (RDO) construction process yields a strong and lightweight carbon frame. Niner's proprietary compaction method presses out any excess resin and compacts the carbon down to a uniform wall thickness. This gives Niner precise control over where the material is and where it isn't, letting the engineers actually engineer the frame by reducing weight where it's not needed while ensuring stiffness and durability at key areas of power transfer and abuse.


Niner's signature CVA suspension finds its way to the Jet 9 RDO. CVA is designed specifically around 29-inch wheels to keep the big-wheel platform balanced between taut under power and supple while rallying over rocks and roots. CVA's lower linkage placement beneath the bottom bracket isolates pedal input from suspension action to prevent the system from bobbing or back-kicking, resulting in a smooth but efficient bike that's responsive to both your power and the trail's trickery.


Details

  • Niner's iconic trail bike blends XC speed with trail capability
  • 120mm of CVA travel is efficient, yet supple over rough trails
  • 130mm FOX fork keeps the front end smooth and planted
  • Balanced trail geometry powers up climbs and rips down descents
  • Boost 148mm rear spacing clears 29 x 2.5 and 27.5 x 3in tires
  • Internal tunnels for easier cable routing and maintenance
  • SRAM GX Eagle 1x12 drivetrain offers a massive range of gears
  • Stan's Arch MK3 Wheels with 26mm width for optimal tire support
  • Item #NNR99AJ
Frame Material
RDO carbon fiber
Suspension
CVA
Rear Shock
Fox Float DPS Performance EVOL
Rear Travel
120mm
Fork
Fox 34 Float Rhythm GRIP EVOL, 44mm offset
Front Travel
130mm
Headset
Niner Internal ZS
Shifters
SRAM SX Eagle, 12-speed
Rear Derailleur
SRAM SX Eagle, 12-speed
ISCG Tabs
ISCG-05
Crankset
SRAM X1 1K Eagle DUB
Chainring Sizes
32t
Crank Arm Length
[x-small, small] 170mm, [medium, large, x-large] 175mm
Bottom Bracket
SRAM DUB
Cassette
SRAM PG-1210, 12-speed
Cassette Range
11 - 50t
Chain
SRAM SX Eagle, 12-speed
Brakeset
SRAM Level
Brake Type
hydraulic disc
Rotors
180mm G2CS
Handlebar
Race Face Aeffect R 35
Handlebar Rise
20mm
Handlebar Width
780mm
Grips
Niner Grrrips lock-on
Stem
Race Face Aeffect R
Stem Length
40mm
Saddle
Niner Custom TR, Cr-Mo rails
Seatpost
KS Lev SI, [x-small, small] 100mm, [medium - x-large] 150mm
Seatpost Travel
[x-small, small] 100mm, [medium, large, x-large] 150mm
Wheelset
Niner Alloy, 30mm
Hubs
DT Swiss 180
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tires
Schwalbe Nobby Nic Evo Super Trail TLE Addix SpeedGrip
Tire Size
[front] 29 x 2.6in, [rear] 29 x 2.35in
Pedals
not included
Extras
downtube protector, chainstay protector
Claimed Weight
29.6lb
Activity
trail
Manufacturer Warranty
[frame] lifetime

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