For over a decade, the RIP 9 trail bike has ruled Niner’s off-road lineup. This latest evolution of our
flagship 140mm 29er is ready to tame any trail.
On every Niner Bikes full-suspension frame, Enduro Bearings MAX black oxide bearings are inside every
pivot point. Niner is one of the only brands using these high-grade pivot bearings.
We always say, if you really want to understand Niner, you have to go and ride one. Our bikes make riding
on dirt a better experience! We’d love to get your bum on one of our bikes, because we are certain
you’ll have a great time and you won’t want to give it back.
As often as possible, we partner with key dealers in popular locations around the country to offer
semi-permanent fleets of Niner test bikes. Let’s call them “Niners in residence,” or maybe “Niner pop-up
dealer demos.”
More than a decade after our first W.F.O. 9 defined the category and set a benchmark for what a long-travel 29er could do, we’re bringing it back. The 2021 WFO 9 RDO draws on our years of 29er evolution to establish a new paradigm of unbridled, big-wheel domination. Reborn with 170mm of stable CVA suspension, a 180mm-travel fork, adjustable geometry, increased frame stiffness, and our signature RDO carbon fiber, the new generation of WFO 9 RDO is an enduro-ready brawler with the pedaling prowess to get you to the top in style.
Wide, Full Open: A decade later
Loyal Ninerds feared that it was extinct forever. But the WFO 9 RDO was only dormant, lying in wait, evolving and mutating to reemerge as the apex predator of long-travel 29ers
That first W.F.O. cut fresh 29er tracks in too many ways to count. Technologies that we take for granted today were pioneered in that legendary frame.
What a difference a decade can make. The strongest remaining genetic link between our original and this new WFO 9 RDO is simply an unquenchable appetite for wide, full open, edge of control, “honey, I can’t feel my face” SPEED.
Genetically engineered for “just right” geometry
All the descending capability of a 170mm travel 29er is fully expressed in this new WFO 9 RDO. Yet any detectable trace of the dreaded “climbing compromises” chromosome is edited out.
We all know that modern enduro bikes have to manage descents into madness on the scale of World Cup DH tracks. Yet they also need to get you efficiently back up to the top when pedaling is your only option. Which, let’s be honest, is usually the case.
With this schizophrenic spectrum of duties in mind, we dialed in a “just right” geometry chart for the WFO 9 RDO. It’s low and slack by nature, but not so slouchy as to kick you out of contention on the steepest climbs.
The native low mode geometry is optimized for all-out, top to bottom, brake-rotor-bluing descents. A 64-degree head tube angle combined with the low BB and long top tube scream “stability” even at eye-watering speeds.
Yet the wheelbase isn’t so rangy as to prevent tight, uphill transitions when the need arises. And a 77-degree seat tube angle keeps your weight centered over the bottom bracket for composed climbing.
If your daily dose of dirt includes more pedaling, tighter corners, and sneaky sniper rocks, you might want a higher bottom bracket and steeper head tube angle. Not to worry - the built-in flip-chip seatstay pivots allow riders to raise the BB by a full 9mm and steepen the geometry by 0.7 degrees.
CVA suspension: the core DNA code
At the heart of our WFO 9 RDO is the Constantly Varying Arc (CVA) suspension system. The first suspension layout made specifically for 29ers, CVA debuted in 2008 and has been the core of Niner’s DNA ever since.
Our CVA fundamentals are rock solid: it’s stable yet supple while climbing and pedaling; going downhill, it’s sensitive and supportive; it’s consistent and controlled in every phase of travel.
On the WFO, a trunnion mount shock adds width (and therefore stiffness) to the frame and linkage. The shock bolts directly to the rocker link with bearings at the interface. This allows for extra-smooth articulation through the entire rocker sweep of 40-degrees during suspension travel. Furthermore, trunnion shocks occupy less space, allowing a compact form factor.
In consideration of the dueling demands riders expect from the WFO 9 RDO, subtle refinements to the kinematics give it superior pedaling behavior despite 170mm of travel on tap. The leverage ratio curve starts at 3.0, hits 2.4 at 67% travel, then hits 2.6 at full travel. It’s also tuned for a slightly falling rate (about 6% in the last 33% of travel). If you’re running an air shock as the bike is spec’d, the overall rate in every phase of travel feels consistent and natural. Even with a coil you won’t feel as though the bike is bottoming out.
Confidence to drop into the biggest lines, knowing you’ll get consistency and control from top to bottom: that’s CVA suspension.
The brawny big brother in our family tree
From a distance, the new WFO 9 RDO looks like a fraternal twin to the trail bike in our line, the popular and handsome RIP 9 RDO. However, Niner’s characteristic full-suspension frame cosmetics deceive your eyes. A closer look reveals that the new WFO 9 RDO is clearly the bigger, brawnier sibling that got its square-jawed genes from cousin Vinnie’s side of the family.
With our signature Rib Cage struts across the front triangle, flattening of the top and down tubes, widening the main rocker link pivot, and beefing up the rear triangle, the entire bike is stiff from front to back. The struts reduce bottom bracket deflection while keeping the upper portion of the front triangle supple and compliant. And the wide, flat surfaces on the top and downtube help to absorb frontal impacts and vibrations while resisting deflection and twisting under torsional load. Finally, crossmembers in the rocker link and swingarm keep the rear of the bike on lockdown.
In order to get the best possible shifting performance, we designed the smoothest, straightest cable routing possible. Cable housing slides easily through full-sleeve guide tubes in gentle arcs from front to back. And an integrated “cable cage” above the bottom bracket area keeps the housing free to move as the suspension cycles, yet far from harm.
CVA suspension
Supple yet stable, and the confidence to drop into gnarly lines, knowing you’ll get consistency and control from top to bottom: that’s CVA suspension. Read More
RDO carbon fiber
Niner’s premium Race Day Optimized carbon fiber means more strength, higher stiffness, and less weight. Read More
Full Sleeve cable guides
No more fishin’. We built in end-to-end cable guides through the frame for easy installation and maintenance.
Enduro Max Black Oxide pivot bearings
We use the smoothest, most durable pivot bearings in the industry. Made by Enduro, they’re built for life. Read More
Protection where you need it
Factory installed, integrated frame protection to keep your ride safe from harm, even when you’re in over your head.
Lifetime warranty
Ride, race, rally. We have you covered with warranty service, small parts, and a support team that actually answers the phone. Read More
"Don’t be surprised if you see riders looking to decimate a gnarly trail or take on an Enduro World Series course aboard the WFO, however, even if your everyday ride is pretty mellow, you will not be bummed to throw a leg over this machine each day. Niner has really done a great job creating a bike that blends performance, efficiency, and downhill fun."
"The suspension is impressively efficient, and I never felt the need to reach for the Float X2's climb switch. Even during out of the saddle efforts the WFO's back end stayed nice and calm, free of any excessive bobbing. The WFO's all-rounder manners continue on the descents, where it's just as easy to plow through the chunky stuff as it is to pop and play around on trailside features."
"We found the Niner WFO to scoot up the hill with ease. Regardless of scales, the perceived weight of this bike felt downright svelte. And e appreciated the WFO's ability to gobble up square-edged hits, regardless of speed or pitch. A particular strength came out on high-speed, steep sections of trail."
Our flagship 5-Star SRAM X01 Eagle AXS LTD build is the ultimate kit to create a dream enduro bike. Add DT Swiss EXC 1200 carbon wheels and the FOX 38 fork, and you're ready to hit send. This WFO is light, fast, and tough.
SRAM AXS wireless electronic shifting
FOX 38 Float Factory fork, 180mm
Schwalbe Magic Mary and Hans Dampf tires
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
FRAME ONLY
Build it your way with our “frame only” option. Dressed with a FOX FLOAT Factory x2 rear shock and packaged with all the hardware to build your personal dream bike, the WFO 9 RDO frame makes a great foundation for your enduro riding efforts.
FOX FLOAT Factory X2 rear shock
Seatpost size 30.9 (34.9 collar included)
73mm threaded BB
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
FRAME ONLY
Build it your way with our “frame only†option. Dressed with a FOX FLOAT Factory x2 rear shock and packaged with all the hardware to build your personal dream bike, the WFO 9 RDO frame makes a great foundation for your enduro riding efforts.
FOX FLOAT Factory X2 rear shock
Seatpost size 30.9 (34.9 collar included)
73mm threaded BB
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
2-STAR SRAM SX EAGLE
Hit the trail without a hit to your wallet, thanks to our SRAM 2-star SX Eagle parts kit. Wring out every ounce of enduro-ready, WFO 9 RDO performance at a price that won’t leave you breathless.
SRAM SX Eagle 12-speed shifting
FOX FLOAT Performance suspension
SRAM Level brakes
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
2-STAR SRAM SX EAGLE
Hit the trail without a hit to your wallet, thanks to our SRAM 2-star SX Eagle parts kit. Wring out every ounce of enduro-ready, WFO 9 RDO performance at a price that won’t leave you breathless.
SRAM SX Eagle 12-speed shifting
FOX FLOAT Performance suspension
SRAM Level brakes
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
3-STAR SRAM GX EAGLE
The most popular kit in our range, the fan-favorite 3-Star SRAM GX Eagle build is an ideal blend of performance and value for this long-travel 29er enduro bike. Fox Factory suspension and DT Swiss wheels complete an outstanding parts pick for the WFO.
SRAM GX Eagle 12-speed shifting
Schwalbe Magic Mary and Hans Dampf tires
SRAM Code R brakes
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
3-STAR SRAM GX EAGLE
The most popular kit in our range, the fan-favorite 3-Star SRAM GX Eagle build is an ideal blend of performance and value for this long-travel 29er enduro bike. Fox Factory suspension and DT Swiss wheels complete an outstanding parts pick for the WFO.
SRAM GX Eagle 12-speed shifting
Schwalbe Magic Mary and Hans Dampf tires
SRAM Code R brakes
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
3-STAR SRAM GX EAGLE AXS LTD
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
3-STAR SRAM GX EAGLE AXS LTD
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
4-STAR SHIMANO XT
If you're a Shimano fan, our 4-Star Shimano XT build is a great blend of performance and value for the WFO 9 RDO. FOX Factory suspension, Shimano 4-piston brakes, and DT Swiss wheels complete this popular configuration.
Shimano XT drivetrain and M8100 trail brakes with 203mm rotors
Schwalbe Magic Mary and Hans Dampf tires
DT Swiss EX 1700 Spline 30 wheels
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
4-STAR SHIMANO XT
If you're a Shimano fan, our 4-Star Shimano XT build is a great blend of performance and value for the WFO 9 RDO. FOX Factory suspension, Shimano 4-piston brakes, and DT Swiss wheels complete this popular configuration.
Shimano XT drivetrain and M8100 trail brakes with 203mm rotors
Schwalbe Magic Mary and Hans Dampf tires
DT Swiss EX 1700 Spline 30 wheels
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
5-STAR SRAM X01 Eagle
A high end 5-Star SRAM X01 Eagle build is the perfect blend of premium parts to complete this enduro bike. With FOX suspension and DT Swiss wheels, our WFO 9 RDO is ready to attack any enduro course.
SRAM X01 Eagle drivetrain and Code RSC brakes
DT Swiss EXC 1200 wheels
Schwalbe Magic Mary and Hans Dampf tires
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
5-STAR SRAM X01 EAGLE AXS LTD Specifications
Our flagship 5-Star SRAM X01 Eagle AXS LTD build is the ultimate kit to create a dream enduro bike. Add DT Swiss EXC 1200 carbon wheels and the FOX 38 fork, and you're ready to hit send. This WFO is light, fast, and tough.
SRAM AXS wireless electronic shifting
FOX 38 Float Factory fork, 180mm
Schwalbe Magic Mary and Hans Dampf tires
Available frame sizes
SM, MD, LG
Available colors
Hot Tamale and Fade to Black
FRAME
NINER RDO CARBON FIBER, 170MM TRAVEL, GEO FLIP CHIP, RIB CAGE CONSTRUCTION, FULL SLEEVE CABLE ROUTING, ENDURO MAX BLACK OXIDE PIVOT BEARINGS
We make every effort to publish accurate build specs, however Niner Bikes reserves the right to make substitutions or changes to bike assembly specification at any time without notice or warning. Product images may not reflect actual specification. Minor variance in color may be visible including fork decal color. Published approximate weights are for size medium (53cm) and may vary by +/- 15% due to manufacturing tolerances.
