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$4,999.00

Item # NNR000T

5 5

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Item # NNR000T

Description

Immensely capable.

We’re living in a golden era of mountain biking. Never before have you been able to get a bike with all the technical capabilities of the late 2000's World Cup DH race bikes, at sub-30-pound weights. And one of our favorite examples of this progress is the Niner WFO 9 4-Star Complete Mountain Bike. With a stellar SRAM package, from the X01 one-by-eleven drivetrain, to the EWS-winning RockShox suspension package, this is a bike that will gladly handle anything you throw at it. And while it’s clearly optimized for going down, it’s both light and efficient enough to make climbing a snap, too. When trail bikes are this good, we think you’ll agree — there's never been a better time to be a mountain biker.

The WFO established itself early on as an immensely capable bike when ridden wide freakin' open, and the latest version will crystallize that reputation. For starters, Niner relaxed the head angle to 67 degrees, which puts it on the very-slack end of the spectrum for big-wheeled bikes. And while this change enhances the high speed stability, it was important to keep the WFO responsive across a wide variety of trails. Accordingly, the chainstays were shortened to a more moderate 17.4 inches, and the top tube lengths have also been reduced by 20mm across the size range. This gives it a lighter handling feel, and keeps the wheelbase from getting unwieldy. Rounded out with a slightly lower bottom bracket, the new WFO has all the stability of its predecessor, with greater versatility.

With a generous 150mm of rear wheel travel, the WFO is clearly optimized for descending fast in hairy terrain. But you may be surprised to find how responsive it is when you get on the gas. That's because of Niner's CVA suspension platform. Unlike other designs, CVA is optimized for the increased bottom bracket drop inherent in 29in-wheeled bikes, which helps to maximize efficiency. It tends to ride high in the travel, with a controlled mid-stroke, which keeps the WFO stable through rock gardens and snappy when you get on the pedals. But one of the oft-overlooked characteristics of CVA is that it helps Niner's bikes jump incredibly well. This is one wagon wheeler that’s very happy when it’s airborne.

While the original WFO 9 was decidedly burly, the latest version retains that strength, but cuts the weight to keep it competitive in a race scenario. This was possible though the use of extensive hydroforming, allowing the tube shapes to be optimized for their intended purposes. As you're probably aware, a large portion of the optimization process is ensuring that there’s precisely the right amount of material present, because unnecessary material not only adds weight, but it can cause undue stress on other portions of the frame. It allows you to build the WFO well under 30 pounds with a sensible build kit — no small feat for an aluminum frame that’s so robust.

Niner pulled out all the stops with the 4-Star build kit, keeping it both competitive and a fantastic value. The drivetrain is SRAM's X01 one-by-eleven setup, which offers the gear range of a standard double chainring setup, without the added weight or complexity of a front derailleur. Suspension duties are handled by RockShox, specifically a Pike RCT3 up front, and a Monarch Plus RT3 out back. SRAM refers to this setup as the "magic carpet" for its incredibly blend of smoothness and controlled damping, and given its track record on EWS racers' bikes, it’s safe to say that it won’t hold you back. The brakes are Avid's Elixir 9 Trails, with a powerful four piston caliper controlling your speed. Niner provides the carbon seatpost, as well as the aluminum bar and stem, and you'll be perched on a WTB Volt saddle. The wheels come from Stan's NoTubes, with Flow EX rims laced to 3.30 hubs. This light and tough wheelset is wrapped in Schwalbe Nobby Nic tires. We'd suggest adding your choice of dropper post to bring out the WFO's true nature, although it’s certainly not mandatory for enjoying the ride.

The Niner WFO 9 4-Star complete mountain bike is available in four sizes, from Small to X-Large, and in the colors Atomic Blue, and Niner Red.

Tech Specs

Frame Material:
aluminum
Suspension:
CVA
Rear Shock:
RockShox Monarch Plus RT3
Rear Travel:
150 mm
Fork:
RockShox Pike RCT3 Solo Air
Front Travel:
160 mm
Headset:
Niner Integrated ACB
Shifters:
SRAM X01
Front Derailleur:
n/a
Rear Derailleur:
SRAM X01 11-speed Type 2
Crankset:
32 t SRAM X01 GXP Crankarm
Bottom Bracket:
SRAM GXP
ISCG Tabs:
ISCG05
Pedals:
not included
Cassette:
10-42 t SRAM X01 11-speed
Chain:
SRAM X01
Brake Set:
Avid Elixir 9 Trail
Rotors:
160/180 mm Avid G2
Handlebar:
Niner Flat Top Alloy
Handlebar Width:
780 mm
Handlebar Rise:
0 mm
Stem:
Niner Alloy
Saddle:
WTB Volt Race
Seatpost:
Niner Carbon
Wheelset:
Stan's NoTubes 3.30 ZTR Flow EX, 142x12mm thru
Axles:
15mm thru-axle
Tires:
Schwalbe Nobby Nic
Tire Size:
29 in x 2.35 in
Recommended Use:
enduro racing nand getting rowdy
Manufacturer Warranty:
2 years on frame
Actual Weight:
Atomic Blue, M: 13,200g

Geometry chart

Niner

Geometry Chart

 

WFO 9
150mm Travel Fork
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

Head Tube

(HT)

Head Tube Angle

(HT°)

Seat Tube Angle

(ST°)

Bottom Bracket Drop

(BBD)

Chainstay

(horizontal measurement, not shown below)

Wheelbase
 S   16.0in  22.0in  24.6in  15.7in  27.6in  3.9in  67°  75°  1.1in  17.4in  45.0in
 M  18.0in  22.8in  24.6in  16.5in  28.7in  3.9in  67°  75°  1.1in  17.4in  45.8in
 L  20.0in  23.6in  25.0in  17.2in  30.3in  4.3in  67°  75°  1.1in  17.4in  46.7in
 XL  22.0in  24.4in  25.5in  17.7in  31.5in  4.9in  67°  75°  1.1in  17.4in  47.4in
170mm Travel Fork
 

Seat Tube

(c-t)

Effective Top Tube

(eTT)

Stack

(S)

Reach

(R)

Stand Over

Head Tube Length

(HT)

Head Tube Angle

(HT°)

Seat Tube Angle

(ST°)

Bottom Bracket Drop

(BBD)

Chainstay

(horizontal measurement, not shown below)

Wheelbase
 S  16.0in  22.2in  24.9in  14.3in  27.9in  3.9in  66°  74°  0.9in  17.4in  45.3in
 M  18.0in  23.0in  24.8in  15.1in  29.1in  3.9in  66°  74°  0.9in  17.4in  46.1in
 L  20.0in  23.8in  25.2in  15.9in  30.6in  4.3in  66°  74°  0.9in  17.4in  47.0in
 XL  22.0in  24.6in  25.8in  16.7in  31.8in  4.9in  66°  74°  0.9in  17.4in  47.7in

Geometry Chart

Reviews & Community

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Niner WFO 9 4-Star X01 Complete Mountain Bike - 2014

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Here's what others have to say...

5 5

Big travel, Big Wheels, Big Fun.

  • Familiarity: I've used it once or twice and have initial impressions

I had half a day on the WFO in Moab last fall, and was very impressed. The rear suspension is a perfect complement to the Pike fork. It rides high and is sensitive to small bumps when climbing and pedaling, and them when speeds go up and the trail gets rougher, it settles in to a really bottomless feel.

The stock build includes the same long stem and 710 mm handlebar as Niner's other bikes, and really need to be switched out for a 50 mm stem and wide bar. The addition of a dropper seatpost will also help the WFO ride to its full potential.

Give me a call at 801-736-6396 est 4076 or email me at mnelson@backcountry.com to get the bike with the best parts setup.