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.
Our trail-taming RIP 9 RDO is available with 27.5 wheels. All the classic capability of our flagship
140mm travel trail bike, with an added dose of agility and playfulness..
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.”
SIR 9: rugged, reliable, comfortable Reynolds 853 steel
There’s a new bike in town. It’s built to last and not let you down. When you’re spinning up the steeps, bombing down the backcountry and grinding out the final miles as the sun sinks into the horizon, you need a bike you can trust. A comfortable, capable, hand-built bike made from proven, air-hardened, heat-treated steel. That’s right, steel. Because Steel Is Real and it’s fully optimized in the SIR 9.
Yes, SIR
So what’s the story with our steel hardtail? For starters, it’s STEEL. This classic metal alloy from materials icon Reynolds gives us the comfortable, durable, capable, versatile, “ride it hard and put it away wet” frame that we have always wanted.
To make it even more tasty, the SIR 9 is strapped with a 120mm travel FOX suspension fork, perforated with no fewer than 18 threaded, reinforced mounting points, clears 29x2.4” (or 27.5x3.0”) tires, and offers easy options for geared or singlespeed drivetrains. No excuses - pack an extra jacket and a PBR, go farther, and stay out longer.
The SIR 9 is perfect for just about any type of riding, no matter how long or short. It’s a butt-kicking, grin-inducing lunch ride launch pad when you only have 30 minutes to burn in the back lot. It’s also made for multi-day missions in the backcountry. And it’s made to make you happy the minute you throw a leg over it.
Get real with Reynolds 853 steel
This modern metal alloy is well known for its unique properties. It actually strengthens in the tube junctions when it air-cools after welding. So, we can do more with it, yet we actually can use less material. For instance, we can design intricate chainstay and seat-stay yokes to accommodate either 29” or 27.5-Plus wheels and tires, with plenty of mud clearance to spare. We also don’t need to add heavy gussets and tube reinforcements - it’s plenty strong as-is.
“Trail country” geometry
Blurring the lines between modern trail bike geometry and traditional cross-country geometry, the SIR 9 occupies a niche we lovingly call “trail country.” If you’re doing a combination of long pedaling rides, stiff climbs, extended descents, and spicy technical sections, you’ll love what we’ve done here. “Trail country” geometry translates to modern trail manners when you need them most, with no sacrifice of efficiency or agility.
The roomy cockpit has a comfortable reach for short stem lengths, giving you quick handling and plenty of maneuverability to blast through rock gardens and cut hard corners. The steep 74-degree seat angle gets you centered over the BB for climbing and pairs nicely with the short 430mm chainstay length for supreme pedaling efficiency.. And of course, the slack, 68-degree head tube angle and long wheelbase contribute stability and self-confidence when you’re dropping into the steepest lines.
Pack it up, pack it in, let me begin...
The versatility of steel gives us the option to add accessory mounting points, and boy did we ever. There are rack and fender mounts, bottle cage mounts, frame bag mounts, and even a top-tube bento box mount. The rear rack mounts are strong enough to hold 55lbs.
Reynolds 853 stee
The magic air-hardened metal from Reynolds actually strengthens after welding.Read More
Multiple mounting options
No fewer than 18 mounting points give you the freedom to run racks, fenders, bottles, frame bags, a bento box, and more. Read More
Biocentric 30
Do you yearn for simplicity? Our patented BioCentric bottom bracket system gives you the freedom to easily go single-speed or geared. Read More
Trail ready geometry
With a longer top tube and slacker head tube angle, the SIR 9 is stable, trail-specced and ready to get shreddy in all circumstances.
Integrated dropper post routing
Clean and concealed, SIR 9 is ready with ports on the seat tube for internal dropper post cable routing.
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
Tire clearance
Need room to roam? We got it. The SIR 9 has clearance to run your choice of 29er or 27.5+ wheels and tires.
"New trends in geometry and componentry are inspiring some really fun bikes, even for those who don't consider themselves the hardtail type."
"Niner has just released the latest drool-worthy steel hardtail with a bikepacking predisposition."
"It's still steel and 29in, but the new SIR 9 from Niner has a whole load more versatility built into it."
"The latest SIR 9 is an attractive option for riders who want a classic material in an up-to-date, versatile package."
Our premium, 5-Star SRAM X01 Eagle build kit and the reliable SIR 9 frame will give you smiles for miles. With 120mm of premium FOX front suspension and DT Swiss XMC 1501 SPLINE wheels, riding so far and so hard was never so easy.
DT Swiss XMC 1501 SPLINE 30 carbon wheels
FOX 34 SC Float Factory EVOL FIT 4 fork w/Kashima coat, 120mm travel
KS LEV SI dropper post
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED AIR HARDENED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Fork
FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET
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.
SIR 9 FRAME ONLY Specifications
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
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.
SIR 9 2-STAR SRAM SX EAGLE Specifications
SRAM does it again with this 2-Star SX Eagle parts kit. It's a wallet friendly, yet high-performing parts kit. Mated to our SIR 9 frame and Marzocchi suspension, every feature of this adventure-seeking singletrack slayer is fully optimized.
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.
SIR 9 3-STAR SHIMANO SLX SINGLESPEED Specifications
Seeking simplicity, silence, and a single speed drivetrain? Look no further than our 3-Star Shimano XT single speed build. Mated to our SIR 9 frame and FOX suspension, your single-speed adventures are ready and waiting.
Niner Alloy wheels, 30mm internal width
Shimano SLX cranks and Niner Cogalicious cog
KS LEV SI dropper post
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Fork
FOX 34 FLOAT FACTORY EVOL FIT 4, 3 POSITION W/ADJ, KASHIMA COAT, 120MM, 110X44MM OFFSET
Shock
N/A
Tubes / Sealant
STANS NO TUBES SEALANT (2 X 2oz BOTTLES)
Front wheel
NINER ALLOY, 30MM INTERNAL WIDTH, 110X15MM
Rear wheel
NINER ALLOY, 30MM INTERNAL WIDTH, 148X12MM
Front Tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6
Rear tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35
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.
SIR 9 3-STAR SRAM GX EAGLE Specifications
Expect the best from our fan favorite 3-Star SRAM GX Eagle kit. Mated to the SIR 9 frame and FOX 34 Float Factory suspension, every feature of this adventure-seeking singletrack slayer is fully optimized.
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 Specifications
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Fork
FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET
Shock
N/A
Tubes / Sealant
STANS NO TUBES SEALANT (2 X 2oz BOTTLES)
Front wheel
DT SWISS M 1900 SPLINE 30, CENTERLOCK, 110X15MM*
Rear wheel
DT SWISS M 1900 SPLINE 30, CENTERLOCK 148X12MM*
Front Tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6
Rear tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35
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.
SIR 9 4-STAR SHIMANO XT Specifications
This 4-Star SIR 9 is dressed for success with a light, stiff FOX 34 120mm travel suspension fork, Shimano XT drivetrain, and DT Swiss M1700 wheels. No excuses - get out and ride!
DT Swiss M 1700 wheels
FOX 34 SC Float Factory EVOL FIT 4 fork w/Kashima coat, 120mm travel
KS LEV SI dropper post
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Fork
FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET
Shock
N/A
Tubes / Sealant
STANS NO TUBES SEALANT (2 X 2oz BOTTLES)
Front wheel
DT SWISS XM 1700 SPLINE 30, CENTERLOCK 110X15MM
Rear wheel
DT SWISS XM 1700 SPLINE 30, CENTERLOCK 148X12MM
Front Tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.6
Rear tire
SCHWALBE NOBBY NIC EVO SUPER TRAIL TLE ADDIX SPEEDGRIP 2.35
Brakes
SHIMANO XT M8100, METAL PAD W/ FIN
Brake levers
SHIMANO XT M8100
Brake rotors
180/160 MT800 ROTORS
Chain
SHIMANO XT M8100 W/ QUICKLINK
Front shifter
N/A
Rear shifter
SHIMANO XT M8100 12SP I-SPEC EV
Front derailleur
N/A
Rear derailleur
SHIMANO XT M8100 SGS 12SP
Cassette
SHIMANO XT M8100 12SP, 10-51T
Crankset
RACEFACE NEXT R CARBON 12SP, 32T (S/M/L - 170MM, XL - 175MM)
Bottom bracket
RACEFACE PF30
Saddle
NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC
Seatpost
KS LEV SI (XS/S-100MM, M/L/XL-150MM)
Handlebar
RACE FACE NEXT R 800MM WIDE, 35MM RISE, 35MM CLAMP
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.
SIR 9 5-STAR SRAM X01 EAGLE Specifications
Our premium, 5-Star SRAM X01 Eagle build kit and the reliable SIR 9 frame will give you smiles for miles. With 120mm of premium FOX front suspension and DT Swiss XMC 1501 SPLINE wheels, riding so far and so hard was never so easy.
DT Swiss XMC 1501 SPLINE 30 carbon wheels
FOX 34 SC Float Factory EVOL FIT 4 fork w/Kashima coat, 120mm travel
KS LEV SI dropper post
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED AIR HARDENED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
Fork
FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET
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.
SIR 9 FRAME ONLY Specifications
Available frame sizes
SM, MD, LG, XL
Available colors
CEMENT GRAY/BLACK
Frame
HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE
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.
