JET 9 RDO 29 3-Star GX Eagle Complete Mountain Bike - 2018
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Rocket down the mountain like you've got a jetpack strapped to your back with the help of the redesigned Niner JET 9 RDO 29 3-Star GX Eagle Complete Mountain Bike. With some tweaks from previous year's geometry, the 2018 Jet tackles XC and trail with vigor and a solid ride. Niner combines its years of experience with dialing in 29er geometry, with widening hub standards and slacker geometry to create a bike that's aggressive enough to charge down steep and rocky descents, but still climbs like a dream, thanks to CVA suspension design. Top it off with a huge gear range, and lightweight carbon fiber, and you'll land yourself a bike ready to charge any trail you point it at.
When things started out for Niner Bikes, it was apparent from the name alone that their founders had a strong belief that 29-inch wheels were the superior mode of transportation on a mountain bike, and their designers more or less defined the category of proper 29er geometry. This particular 3-Star GX Eagle build holds true to those roots, but allows for the flexibility to swap to a whole new tire size all together, the 27.5+. This model comes to you with 29-inch wheels, ready to climb techy mountain sides and rocket down singletrack. Since Boost spacing allowed engineers to widen the hub spacing to a lofty 148mm, the rear end can now charge down the mountain with up to a 27.5 x 3-inch tire with enough clearance for mud. Though this model comes ready to roll with 29-inch wagon wheels, you can swap it to a 27.5 wheelset with the simple addition of an air spring in the fork.
The latest update to the Niner Jet 9 RDO frame moved the speedy XC race geometry, and gave it a bit of a makeover to make it a better all-around trail bike for sending it on the whole mountain. An additional 20mm of travel was added to the Continuously Varying Arc (CVA) rear suspension, which brings the total to 120mm, and added the ability to swap back and forth between 29er and 27.5+ wheels. The headtube moved a bit slacker, the seattube steeper, and the reach stretched out a bit longer, making the Jet 9 a much more trail-hungry beast than in previous years. For those worried about the loss of an XC bike, the RKT has stepped in to take the race-rocket place of the Jet as the new go-to for an XC race machine.
Climbing is efficient with Niner's Constant Varying Arc suspension, without compromising that smooth and bottomless feel we covet. CVA, along with FOX's Float DPS Performance Evol rear shock, manages to throw 4.7-inches of boulder-hungry travel into the rear end for gobbling up rock gardens and rooty tree lines. CVA works by pulling the bottom link down as you pedal, avoiding pedal bob, while the top linkage is free to move and respond to rocks and bumps on the way up.
Complimenting CVA and the Fox Float DPS Factory rear shock is a Fox 34 Float Factory Fit4 fork, equipped with 130mm of buttery-smooth Kashima-coated travel for soaking up rocks and blows on the trail. The 34mm stanchions offer supple support for tracking your line down the mountain with confidence. This particular build is designed around the 29-inch wheel, so the fork is dialed for its geometry, but if you want to swap it to a 27.5+ you'll want to add a lower headset cup to lift the front end a touch, so that the geometry stays where it's ideal with the slightly smaller diameter wheels.
The 3-star GX build sees SRAM's GX Eagle drivetrain, which offers a massive 10-50-tooth 12-speed cassette. With the plusses of Eagle, you'll find a gear for any climb or descent, with a huge bailout cog for those super steep and punchy moments when a 42 or 46-tooth won't do. SRAM's GX Eagle has the technology of their XX1 and X01, but with a bit more weight and huge price savings, making eagle attainable to those looking to keep a tighter budget. While the 3-star build does feature most of the same drivetrain components as the lesser 2-star build, the upgraded shock and fork elevate this build, along with the upgrade to Stan's NoTubes NEO/ZTR Arch MK3 29-inch wheels, which are lighter, stiffer, and more responsive than the more basic Niner alloy hoops on the 2-star option.
The lightweight RDO carbon that makes up the Jet 9 RDO is resilient, and designed to create a singletrack slayer. Niner's method for completing a carbon layup manages to squeeze out excess resin during the molding process, which reduces pooling, voids, and maintains precision when it comes to thickness and construction. The carbon fiber layup has ports for internal cable routing, so you can end with a clean finish. The frame is designed to capture long, low geometry that's popular in today's trail bikes. The longer reach allows you to run a shorter stem, which enables quick handling, while keeping your weight back, so long descents are a breeze. Shorter chainstays come in at just 434mm, tucking the rear wheel up underneath you, so you'll find better climbing traction, and agility for flicking the bike through tight switchbacks and trees. For the perfect balance between slack and steep, the head angle falls at 67.5-degrees, perfect for precise steering with both slow-speed encounters and high-speed stability.
Details
- Niner's Jet gets a trail-ready face lift
- 120mm of CVA suspension designed for wagon wheels
- Updated geometry descends with power and climbs with ease
- SRAM GX Eagle turns the volume of your gear range up to 11
- Kashima-coated suspension rides smooth as butter
- RDO Carbon fiber is lightweight to boost speed
- Swap it to plush 27.5+ setup when you want some extra squish in your ride
- Item #NNR006X
- Frame Material
- RDO carbon fiber
- Suspension
- CVA constant varying arc
- Rear Shock
- FOX Float DPS Factory Evol 3 position
- Rear Travel
- 120mm
- Fork
- FOX 34 Float Factory Fit4 Evol, 3-position
- Front Travel
- 130mm
- Headset
- integrated
- Shifters
- SRAM GX Eagle
- Rear Derailleur
- SRAM GX Eagle
- ISCG Tabs
- ISCG 06
- Crankset
- SRAM Descendant 7K Eagle GXP 32T
- Bottom Bracket
- SRAM GXP
- Cassette
- SRAM Eagle XG 1275, 10-50T
- Chain
- SRAM GX Eagle 12-speed
- Brakeset
- SRAM Guide R
- Brake Type
- hydraulic disc
- Rotors
- 180/160mm G2CS
- Handlebar
- Race Face Aeffect R 35mm
- Handlebar Rise
- 20mm
- Handlebar Width
- 780mm
- Grips
- Niner Grrrips L/O nylon flanged
- Stem
- Race Face Aeffect R 35mm
- Stem Length
- 50mm
- Saddle
- Niner custom TR
- Seatpost
- KS Lev Integra SI
- Seatpost Diameter
- 31.9mm
- Wheelset
- Stan's NoTubes Baron 27.5+
- Front Axle
- 15x110mm Boost
- Rear Axle
- 12x148mm Boost
- Tires
- Maxxis Ardent DC/EXO/TR
- Tire Size
- [front] 29 x 2.4in, [rear] 29 x 2.25
- Recommended Use
- cross-country, trail
- Manufacturer Warranty
- 5 years
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