Niner Bikes WFO 9 29er Full Suspension

4.79/5 (19 Reviews)
MSRP : $2099.00

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Product Description

Wide, Full Open. That’s what the name means. Let ‘er go, full throttle, don’t slow down for anything, that’s what the name implies. With 5.5” of plush CVA™ suspension technology underfoot, there’s nothing stopping those 29” wheels except the human instinct to live another day.

The W.F.O. 9 went through exhaustive testing and refining, including a first for a 29er frame: a tapered headtube for increased front end stiffness and strength. We thought about all of the ways people might take advantage of having 5.5” of travel coupled with a 29” wheel, and we designed the W.F.O. 9 to handle them all. A custom S-bend hydroformed downtube allows the use of both coil and piggyback shocks, offset bottom linkage makes room for an ISCG mount, making this frame the first 29er to be compatible with the all new SRAM Hammerschmidt system and other chain guide systems and an optional 150mm rear spacing increases rear wheel strength and stiffness. Best of all, build it how you want. Order the W.F.O. 9 with 135 or 150 rear spacing and then choose from our shock options or order without a shock.

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Reviews 1 - 15 (19 Reviews Total) | Next 15

User Reviews

Overall Rating:5
Value Rating:5
Submitted by hhjester a Weekend Warrior

Date Reviewed: June 29, 2017

Strengths:    Pike fork monarch rear shock slx 11speed reverb dropper post

Weaknesses:    Slx brakes handles felt great but brakes did not grab as well as my old juicy 5 on ex8 maybe not bedded in well

Bottom Line:   
I'm coming off of a ex8 that I've had for six years, was set right after all them years. I ordered off of jenson for 2499. I took to my local trail idlewild(neshaminy high school) I put it together in parking lot was packed great, but derailleur hanger was bent so called jenson immediately, and spoke to Ian and told him and he said he was going to overnight it no questions asked. The bike is a medium and is like other reviews saying cockpit is short but can't believe it climbs better than ex did not as much wander a little but just slide forward and pedal not much pedal bob at all. Handles great I'm so happy I hit a home run, the slx seems good but couldn't get big gear with tweak. This is my first review so bear with me. The tires are conti kings plus they grab pretty good it was dry and rocky. I'm a hair over 5.9 and bike fits great. Will add more info if anything changes

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Favorite Trail:   Idlewild

Duration Product Used:   1 day

Price Paid:    $2499.00

Purchased At:   Jenson

Similar Products Used:   My ex8 although not that similar

Bike Setup:   Out of bike with race face nylon pedals

Overall Rating:4
Value Rating:4
Submitted by Earthpig a All Mountain Rider

Date Reviewed: January 28, 2016

Strengths:    Descending.

Weaknesses:    Climbing. Heavy.

Bottom Line:   
Bought my WFO in spring 2015. Pretty "normal" AM build - 160mm Pike, Hope/Flow wheelset, 1x10 XT drivetrain, XT brakes, KS LEV post, blah, blah blah. It's not my only bike, but I've probably logged 50 or so rides on it in the last year. It's definitely the best descending 29'er I've owned. Which, of course, is not surprising since it has 150mm of travel. It is also one of the slowest climbing 29'ers I've owned too. Which, of course, is not surprising since it's a 29'er with 150mm of travel and not light. I suppose this frame would work best for lift-served riding or somebody whose usual terrain does not have a lot of sustained climbs but has a lot of technical DH sections. It's not something you want to ride all day - but, for shorter rides where you just want to fly downhill, it's great. I enjoy it, it will stay as part of my stable, but it's not my "go to" bike.

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Purchased At:   LBS

Similar Products Used:   Transition Bandit 29 (first generation); Transition Covert 29; Niner RIP 9

Bike Setup:   2015 WFO size L, 160mm Pike, Flow/Hope wheelset, XT drivetrain and brakes, KS Lev post

Overall Rating:5
Value Rating:5
Submitted by morphosity a All Mountain Rider

Date Reviewed: December 16, 2014

Strengths:    This review is for the 2014 WFO, although I did own the older bike before this. I really like this bike-it corners really well, has nice suspension performance and is very confidence inspiring pretty much everywhere-especially pointed downhill. It also climbs pretty well for a 30 pound 150/160 mm travel bike, though this is probably because the suspension design-lots of traction with very little bob. This is good for getting drive out of corners as well. It's one of those bikes that felt right pretty much from the start-it makes you want to find trail features to pop off, see how fast you can go around the corners etc.

One of the guys I ride with sometimes tried my bike and decided he had to have one. I know it's not supposed to be about the bike, or something like that, but he is now riding faster and having much more fun than he used to because of how good this bike is. (Not that his old bike was bad, it was a carbon fibre 26" trailbike from a well respected brand, but geometry has moved on since it was made) He says riding the WFO is like a powder day for skiing every ride.

Weaknesses:    As the other reviewer below said, the paint chips pretty easily although it does look cool. I'd prefer an anodised frame like the old bike had, but this is a minor point.

Not really a weakness, but something to be aware of is that the top tube is a bit shorter than the old bike and other similar bikes. I don't find this to be a problem-I am 5'11" and find that a 50mm stem works well on a large frame-it doesnt feel too short or too high, but if you are tall it might be something to consider.

I bought my bike as a frame only, so I can't comment on how the Niner build kit works in the real world. That said, the riding this bike encourages is better with a dropper post (which I don't think is included as standard) but it's no big deal to put your favourite post on. The same goes for tyres-it's easy to put your own favourite tyres on-for me that would be a set of Minions.

Bottom Line:   
As you may be able to tell, I like this bike a lot. I'd say it's a great 150mm travel bike that happens to have 29" wheels. Riding it shows the myths that keep getting repeated about 29ers i.e. they don't go around corners, they aren't good in technical terrain etc up for the nonsense they are. It rides like a bike, a really good one-it's confidence inspiring and good fun to ride on interesting trails. I'd definitely recommend it to someone who wanted such a bike-not pure DH/FR, not a superlight XC dirt road bike, but a good all round mountain bike that puts a smile on your face every time you go for a ride.

Other general comments-while the stock Monarch Plus works well, I put a CC Inline on my bike which I think is a upgrade worth having. It improves the midstroke behaviour of the bike and also improves small bump compliance. I haven't used the climb switch because the bike pedals so well as it is. Also this bike definitely benefits from a nice set of wide carbon rims (e.g. Derbys) as the stiffness helps with steering precision and ability to hold a line.

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Similar Products Used:   Pivot Mach 6, Santa Cruz Tallboy LT, Scott Genius 720, Giant Reign, Trance 29, Niner WFO9 (2012), Specialized Stumpjumper 29, Specialized Enduro SL (with Fox suspension)

Overall Rating:5
Value Rating:5
Submitted by fxdcbikes

Date Reviewed: November 15, 2014

Strengths:    The new 2014 WFO is light and super fun to ride for a 29er. With so much travel it totally eats up the trail and loves technical stuff. I ride it in fast and slow technical areas with lots of roots and rocks. it loves to jump and tear around corners. Fast and smooth XC trails become rather boring on this bike. the ZTR wheels have been great, the rear hub spins forever. The fork is pretty awesome once you have it dialed. 1x11 is great and works absolutely flawlessly.

Weaknesses:    the black paint is actually a wrap layer with decals over the color paint (blue or red). If you scratch it, the color shows through and makes it more noticeable. The Sram cassette driver has had issues and was finally warranteed. The stock stem and bars are meh. No stock dropper post. Cable routing design is unresolved as it rubs on rear shock. The chain sometimes jumps off the rollamajig in the derailleur when you power through really rough sections. but you don't lose your traction and can keep pedaling.

Bottom Line:   
This review is for the new 2014 WFO Niner. The photo here is the old WFO. This bike is the first 29er that I've ridden with plenty of travel while being light enough. I love how playful the bike is in all situations. I installed an internal dropper post and nice spank bars with a decent stem. That bike now is hard to fail for fun factor, plus it's light enough to keep up on a hammer ride. But it's made to push your limits on burly trails where your abilities will suddenly seem to increase tenfold... XC trails will become boring pretty fast, you will be looking for challenging stuff.
Great value for the price point.

Overall Rating:5
Value Rating:5
Submitted by SomeDude001 a All Mountain Rider

Date Reviewed: May 17, 2013

the frame is stiff as a 20-pound solid-steel tube frame, but without weighing 20 pounds.
a 29er with a 150mm rear spacing option. pfffft, how awesome is that?
slack front end.
certified beefcake suspension linkage.

this bike should have wolves painted on it.
totally weird that it didn't come that way.

Bottom Line:   
i bought the WFO in late 2011, no major breakages yet. i'm 6'4" 215 pounds -- this is the first bike in 20 years of riding mountain bikes that i haven't bought the largest frame size available. i got a large and i love the way it fits. big bike still, but feels pretty quick for such a big rid. to be sure, it's still a lot of bike to push around in tight trails, but that's the same for any 29er -- and at least this one is slack, and stiff.
The rear suspension is awesome. i had 2 vpp bikes before this one, and this suspension feels distinctly better. i've never felt pedal feedback in climbs and the progressiveness of the rear is great (i run a dhx air 5.0). i could say it climbs well (and i believe it may), but I always find that odd to say about a bike. Bikes don't climb, people do.

The WFO kicks ass. it's a bit spendy, but that just means you'll need to ride it more to get your money's worth.

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Favorite Trail:   The one I'm riding today

Duration Product Used:   Since late 2011

Purchased At:   Tam Bikes in Mill Va

Bike Setup:   Fox 34
Fox DHX Air 5.0

Overall Rating:5
Value Rating:5
Submitted by TioE

Date Reviewed: January 2, 2013

Strengths:    Geometry, Can go anywhere and can do anything!.....From uphill to extreme downhill.

Weaknesses:    None

Bottom Line:   
Had the WFO9 for 2 months now. Amazing bike. It is my first 29er and from ride one the feeling was like riding it for months. Rear suspension Monarch Plus is amazing and CVA does the job. Be careful on's too fast!!! If you are thinking of it...go for it!
Unbelievable Bike!!!

Overall Rating:4
Value Rating:5
Submitted by killerkartoffel

Date Reviewed: September 30, 2012

Strengths:    Burly and plush with the standard shock. Got mine (the old model frame+shock) from a discount for 1100$, so really worth the cash.

Weaknesses:    -Steep head angle and can't fit an angleset (the old model).
-Lower linkage is really vulnerable to rocks. Not sure how many hits the linkage can take before there's any real damage.
-Routing is a bit weird for the der cables.
-Heavy.(not a big deal for me)

Bottom Line:   
Awesome frame for the price I paid... Only real flaw for me is the steep head angle.

Overall Rating:5
Value Rating:5
Submitted by masonmoa a All Mountain Rider from Berkeley, CA USA

Date Reviewed: March 26, 2012

Strengths:    Strong and burly. Great suspension design. Nearly zero pedal bob. Climbs well. Rolls over everything. Really fast going down. Depending on setup can be a great bike for different types of riding.

Weaknesses:    If you're a weight weenie, not the bike for you. I don't care about weight though.

Bottom Line:   
I'm a super clyde at 6'5" and 330lbs. This bike is amazing for a number of reasons. First, you can build it up to be a really rock solid bike so it's a great bike for larger riders. The XL frame is big and it feels like I'm in the bike, not on it. I built it to be a burly trail bike and it is a great bike for a lot of different styles of riding. Climbs well for how big it is. It's really fast going down the mountain and handles really well. I upgraded to the Fox DHX air and I although some people hate it, after I dialed it in I really like it. I can't bottom it out. Feels really buttery going down. And most importantly, there's almost no pedal bob whatsoever. It's pretty amazing as that was my biggest gripe with my old 29" GF and my 26" Stumpy fsr. The suspension design is so good for larger riders once you get the right shock and get that shock dialed in. If you want a really solid 29er trail bike that works for a lot of different conditions this bike is it.

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Duration Product Used:   6 months

Purchased At:   Wrench Science

Similar Products Used:   '10 GF HiFi Deluxe

Bike Setup:   CK hubs laced to Stan's Flows, Fox 34 140 Talas, Fox DHX air, XO derailleurs, X9 shifters and crankset, 2x10 super granny 22/36 with 12-26 rear. 135 rear w/ 142 maxle kit. Avid CR w/ 203's front and back. Thomson stem and post.

Overall Rating:5
Value Rating:5
Submitted by cdaler a Weekend Warrior from Monument, CO

Date Reviewed: February 3, 2012

Strengths:    Travel, climbing, feels solid under my 250 lb clydeness Just all around fun bike.

Weaknesses:    Definetly hit the crank arms more than a 26 but more a function of getting used to a new bike. Chain suck if you miss a shift, but more my fault than anything.

Bottom Line:   
I got this bike as a replacement for my stolen Prophet and my first 29er, I was looking for a RIP 9 but found the WFO on CL for a very nice price, poor guy was buying a house and needed extra $ for closing (gotta love the banks last minute add ons).

Rode this bike for the first time on Kenosha Pass to Breckenridge for its real trail trial run and my first ride of the season ~30 miles. This bike climbed over wet off-camber roots like it was hard pack and flew down the rocky trail like it was on rails. The bike came with X.0 grip shifters, and that was the hardest thing for me to adjust to; I liked how fast you could shift, but it wasn't 2nd nature to me so I had some issues shifting the wrong way. Thus causing the chain suck. I changed over to triggers this winter but have yet to ride it far to see if it solved the problem, but I believe it will. I doubt I would have gotten the WFO if I hadn't gotten such a sweet deal, as it is more bike than I will use, but the weight is good for a clyde like me and the frame felt solid on the long downhills over Georgia pass into Breckenridge.

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Duration Product Used:   3 months

Price Paid:    $3500.00

Purchased At:   craigslist

Similar Products Used:   Nothing like it

Bike Setup:   Marzocchi 140mm fork, Stans wheels, X.0 3x9, Race Face cranks, Nevegal 2.2, Joplin R, CK hubs ~ 32lbs size L

Overall Rating:5
Value Rating:5
Submitted by nolan17 a Cross Country Rider from Worcester, MA

Date Reviewed: February 23, 2011

Strengths:    Great climber, even better decender, very stiff frame, super plush, great in the rough technical terrain. This frame lasted a whole season and is still fine, a first for me.

Weaknesses:    It is heavy but so am I

Bottom Line:   
If you ride very technical terrain, up and down, and would rather go straight through than around stuff this bike is for you. It is also good if you are a larger rider looking for a AM 29er that won't flex.

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Duration Product Used:   6 months

Price Paid:    $2400.00

Purchased At:   Providence Bike

Similar Products Used:   Turner Sultan

Bike Setup:   Dorado, Elka, Hope V2, WTB Dissent

Overall Rating:5
Value Rating:5
Submitted by cruzean a Cross Country Rider from Nevada City, CA

Date Reviewed: December 15, 2010

Strengths:    Well built, stiff, climbs great, 150mm rear, cable routing for dropper seat, Tapered HT

Weaknesses:    Pro Pedal adjustments do not work.

Bottom Line:   
This is the single most versatile bike I have ridden. It climbs very well, as good or better than any 5.5 bike I have ridden. Feels lighter than its 32lb weight. The geometry is spot on for trail riding with a 140mm Reba and short stem. I can spend all day on this bike (including epics) and love every minute of it. I may not get to the top first but I am by no means last and once at the top my friends let me go first so I don't have to pass them. I have no problems taking it to North star and keeping up with my friends on DH bikes, as long as I put on a bigger tires. I was going to get a RIP but glad I got the WFO. It is the best quiver of one bike for where I live (near Tahoe & Downieville, tons of variety). I am 6ft and 200lbs and the Lg fit me well

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Favorite Trail:   depends on the day

Duration Product Used:   3 months

Price Paid:    $1200.00

Similar Products Used:   RIP, TallBoy, 69ed Foes FXR, Blur LT Carbon, Specialized FSR 29er (2010), Racer X 29er, TNT Sultan, Intense Tracer 29er, Nomad

Bike Setup:   150mm rear, 140mm Reba, I9/Gordo up front, 36 hole Hope/Flow in back, WTB Stout tires, XT, Formula, ...

Overall Rating:5
Value Rating:5
Submitted by Panzerman2134 a Weekend Warrior from Irvine, CA, USA

Date Reviewed: November 18, 2010

Strengths:    Climbs great and descends better. Feels rock solid compared to similar bikes. Being 6'4" and 215lbs this bike fits me perfectly

Weaknesses:    Color choices are pretty weak, Bike is not made in USA. Not a light bike and not a good choice for smaller/shorter riders

Bottom Line:   
This is a great bike for tackling just about any kind of trail. It climbs and descends well and is a blast to ride. If your a taller rider I really recommend the 29ers. Overall A great bike, got a killer deal on my frame at speedgoat and if I had to do it again I would not change anything, I love this bike!

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Favorite Trail:   Lynx & Rockit

Duration Product Used:   Less than 1 month

Price Paid:    $1050.00

Purchased At:

Similar Products Used:   Specialized Enduro, Stumpjumper FSR 29

Bike Setup:   Size Large WFO 9 anodized brown, Rockshox Reba 140 Ti, Fox DHX air 5.0, 150mm rear, King hubs w/ Stans ZTR Flows, Panaracer Rampages, 10 speed XO short cage w/ 12-36 Cassette and XO shifter pods, Hammer Schmidt, XO Disc Brakes 203mm front 185mm rear, Thomson post and stem, Easton Monkeylite bars, ODI rogue grips, WTB lazer v slt saddle

Overall Rating:5
Value Rating:5
Submitted by bigboybikerider a Cross Country Rider from Flagstaff, Arizona

Date Reviewed: October 29, 2010

Strengths:    To me the bike looks great, super strong, burly, pivots are schweet, overall design and ride is perfect for me :)

Weaknesses:    Colors are too limited so I painted mine "canary yellow"

Bottom Line:   
Great bike for us heavy thrashers out there for we need it and I am tall and around 240 :)

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Favorite Trail:   the worm hole

Duration Product Used:   1 Year

Price Paid:    $6000.00

Purchased At:   online company

Similar Products Used:   Ellsworth Evolve 29r, Pivot 429, Intense Spider 29r, Santa Cruz Tall Boy!

Bike Setup:   Marzocchi 44Ti 29r(white), Chris King Devolution Headset, Thomson stem/Crankbrothers Joplin seatpost w/remote, Race Face Carbon 28" w low rise bar, Shimano XTR gearing along with XT brakes 180/180, Push Tuned RP23 XV shock, Custom Wheelset includes (Sun Charger 29r rims, DT swiss double butted spokes, DT swiss-red nipples, Hope Pro 2-red hubs), XT crankset triple, Schwalbe Racing Ralph 2.25, Selle Italia Yutaak (ti)saddle.

Overall Rating:5
Value Rating:3
Submitted by david2bxact a Cross Country Rider from Kirkland, WA USA

Date Reviewed: August 31, 2010

Strengths:    Where to begin.. amazing climber; super-amazing descender; nimble performer in most areas compared to my 26'er. Three inches makes a HUGE difference(..that's what she said!).

Weaknesses:    Aesthetically, it's not an ugly design - it's just not great-looking either. Only two colors: Vanna White or Milk Dud Brown, seriously.
Tight switchbacks can washout under bigger front wheels. Suspension setup sags under harsh V descents. Moderate chain slap.

Bottom Line:   
Till now, I've never had a brand, new bike. Even as a child, I was given hand-me-downs or horse traded with kids on the block. So at nearly $100 per each year I've lived, I overreached in righting that wrong.
That said,at 6'2 and 240lbs my selection was a bit limited. I love the Ellsworth bikes; they're rolling art! Tried the Epiphany first, then the Evolve 29er. If I were 200-220lbs I'd be an Ellsworth owner today.
Either a very patient salesperson or a very slow sales day allowed me to roll multiple bikes on the streets and hills around my LBS. When I tried the WFO with the HammerSchmidt it was over. It's big and burly, not too heavy and can roll just about anything you're likely to find on the trail.

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Favorite Trail:   Duthie Hill, Tolt, St Edwards.. every trail

Duration Product Used:   Less than 1 month

Purchased At:   Veloce Velo,

Similar Products Used:   29ers: I borrowed a Turner Sultan from LBS for weekend and was impressed but had basically decided on WFO by then. Also demo'd an Ellsworth Evolve around lot of my local REI store. BTW, both are lighter, moderately less expensive and infinitely better-looking bikes. Plus, both still made in USA!
26ers: Santa Cruz Nomad; Ellsworth Epiphany; Specialized SJ Expert

Bike Setup:   Large Vanna White frame; 2.2 Kenda Nevegals on ZTR Flow 29ers; Marzocchi Bomber fork; 28" Salsa Pro Moto flatbar clad w/ Ergon GP1 Superlight grips; Avid Elixir R discs, Specialized Command Post hydraulic seatpost; SRAM X-0 rr dérailleur; SRAM 11-34 rr sprocket and the AM HammerSchmidt drivetrain.

Overall Rating:4
Value Rating:5
Submitted by michauxguy a Weekend Warrior from Central, PA

Date Reviewed: February 12, 2010

Strengths:    I bought a frameset including fork, shock, front derailleur and headset.
This is a super nice frame with room for any tire and a strong, thick design. The paint resists chips better than other bikes I've had. Can use tapered or straight steer tube forks. Options for rear axle (12mm or QR). Great, great fun.

Weaknesses:    This bike flaunts 5.5" of travel. It is true for the Hammerschmidt crank.
When you use the front derailleur and a conventional crank the chain stay can hit the front derailleur cage before the shock bottoms. It may not be an issue as I have yet to bomb that hard to make them touch. I'm not really sure if the entire 5.5" travel can be used with the front derailleur installed. Travel may actually be more than 5.5 with no front derailleur and the hammerschmidt or a single ring crank.
The cable routing is a little strange. It has to do with the lower dual pivot. There's so much movement it requires a bit more slack than I'm used to on a single pivot chain stay. I can deal with it.

Bottom Line:   
Consider the Hammerschmidt crank if you want full use of this bikes capability.
The fat treat this frame allows is fun. This is a downhill, knock around and all mountain bike. There are better options for cross country or racing.
I took one chili because I wrote to the company about my derailleur concerns and they never replied. I would feel better if they at least told me I was nuts. Minus one chili for poor customer service.
Aside from that you'll love this bike.

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Favorite Trail:   Edge of the World

Duration Product Used:   Less than 1 month

Price Paid:    $2100.00

Purchased At:   bike29

Similar Products Used:   I own a FS Gary Fisher HiFi and a Specialized Rockhopper hard tail.

Bike Setup:   Full XT drive with Elixir CR 185mm brakes, Niner bars and seat clamp, Thomson seat post and stem, 44 Micro Ti fork, American Classis 26mm wheelset with WTB 2.55 tread.

Reviews 1 - 15 (19 Reviews Total) | Next 15

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