Niner MCR 9 RDO AXS 2X 2021 gravel bike

Introducing the world’s first full-suspension gravel bike – the Niner Magic Carpet Ride.

- By adding our CVA full suspension to a dedicated gravel bike platform, we’re blending the confidence and control of a cross-country race bike with the efficiency, fit, and responsive handling of a gravel bike. The result is a curly bar bike with superior comfort, power delivery, and pure, unadulterated fun.
- Why forge the first drop-bar full suspension bike? Because Niner Bikes was founded in 2005 with a simple goal: making riding on dirt a better experience, period. Fourteen years later, the MCR 9 RDO is a natural extension of this effort. When you ride one, you’ll see. More comfort, more control, more fun, and more freedom to ride whatever, wherever

The 9 things you need to know:
- 50 mm of stable yet supple CVA suspension.
- RDO carbon fiber main frame and rear triangle with forged, 1-piece linkages.
- Integrated rear fender protects suspension components.
- 11 fixed mounting points for frame bags, bottles, and more.
- Removable front derailleur mount.
- Durable, long-lasting Enduro Max “Black Oxide” pivot bearings.
- Clearance for 700 x 50c or 650b x 2.0 tires.
- End-to-end, Full Sleeve internal cable guides and integrated frame protection.

- Because, when there’s an idea for a way to make riding on dirt better, we at Niner pay attention. In 2005, it was the 29er wheel size. In 2008, it was our CVA full-suspension design, optimized for bikes with bigger wheels. In 2013, it was the RLT - one of the sport’s earliest purpose-built gravel bikes, with stable geometry, sturdy construction, and ample tire clearance.
- So lately when we started seeing our gravel riders doing more and more crazy shit on their fully rigid, unsuspended bikes, our metaphorical attic lights clicked on
- Think about that phrase: fully rigid, unsuspended bikes. That’s mountain biking, 30 years ago. Why should gravel bikes be stuck in the past?

- Today’s mountain bikes are fully suspended, dressed in disc brakes, dropper posts, thru-axles, and more. These technologies make mountain bikes faster, more fun and more capable, enabling longer rides in more places. And up to now, all but one of these MTB technologies has been adopted for gravel.
- By adapting high performance suspension for gravel, we believe the MCR 9 will allow gravel riders to pedal comfortably, powerfully, with more control and confidence over once-unthinkable surfaces. We’re proud to be the pioneers bringing full suspension to gravel bikes.

What it is and what it ain’t:
- Let’s be clear: the MCR 9 is not a mountain bike with drop bars. It’s a true gravel bike, with steeper geometry, quicker handling, and an ergonomic fit. It’s made for seated pedaling and rider comfort over long distances. It has half the suspension travel of a true mountain bike.
- The MCR 9 is more than a gravel bike. It doesn’t skitter and skate though corners. It doesn’t buck you out of the saddle when you pedal through washboards, ruts, and cobblestoned stream crossings. And descending rough roads at speed is not a white-knuckle fear fest. Why? Because it doesn’t rely simply on tire pressure and undamped frame flex for suspension
- Thanks to suspension, the MCR 9 encourages sitting deep in the saddle and pedaling powerfully through chop. It hugs the ground and tracks corners like a slot car. It’s planted and confident on high speed descents. It leaves you fresher, with more energy and less wasted effort, by isolating you from intrusive bump inputs.
- If light weight, endless uphills, and ruthless efficiency is your thing, our RLT 9 gravel bike series is your jam. If steep, rough descents and straight up singletrack figures prominently in your plans, consider the RKT 9 RDO mountain bike
- But if you want an entirely new outlook on gravel, one that marries the confidence and comfort of a mountain bike with the efficiency and fit of a gravel bike, hop on this Magic Carpet for the ride of your life

The CVA story:
- Over the years, plenty of effort has been made to add comfort to drop-bar bikes. But most designs use primitive, undamped flex points or elastomers that simply mute vibration. These don’t address the fundamental goal of true suspension, which is keeping the tire contact patch from bouncing off the ground. More tire contact = more control.
- We wanted the most sophisticated, tunable suspension system possible, with a minimum unsprung weight. By suspending as much of the bike and rider mass as possible, we achieve the most sensitive, compliant ride possible. Air springs are infinitely tunable to suit a wide range of riders and their gear. And oil damping is essential, both for controlling compression energy inputs from the rider, and for dissipating rebound energy as the suspension recovers from bumps of all sizes.
- At the heart of the MCR is Niner’s patented, proven, Constantly Varying Arc (CVA) suspension system. It debuted in 2008 and has been incrementally refined ever since. But the fundamentals have not changed: CVA is stable yet supple while climbing and pedaling; sensitive and supportive going downhill; consistent and controlled in every situation.
- For the MCR 9 RDO, we changed the suspension curve to emphasize performance for a seated, pedaling rider. It’s tuned to be especially sensitive to high frequency, low amplitude bumps, and more linear with less end-stroke progression. Configured as a short-travel system, we want riders to easily achieve full travel with less emphasis on big hits and bottom out resistance.

Suspension details:
- Revised CVA linkage layout.
- Stable yet supple, consistent and controlled CVA suspension behavior.
- Lower link under the BB for short chainstay length.
- Flatter leverage curve allows full use of shorter travel.
- Air spring for infinite spring rate adjustment.
- Oil damping to control movement.
- Remote rear shock lockout.

Weaving the magic carpet:
- The quest to effectively suspend a bike and rider on a drop-bar bike has stretched on for years. As early as the 1990s, emerging mountain bike concepts were tested on Paris-Roubaix road racing bikes built for the cobblestoned roads of northern France. And mountain bike racers have occasionally adopted road bike drop bars and aero bars for certain events.
- Development of the MCR began in 2016 with internal discussion regarding goals, features, and design concepts. Lead Engineer George Parry began with aluminum prototypes to test geometry, frame design, and suspension behavior. By late 2017, we had a size run of alloy mules. Many designs and prototypes were considered tested until we knew we had it right.
- In the end, we aimed to maintain a classic gravel bike aesthetic with no compromises in geometry, handling or stiffness. By mounting the rear shock behind the seat tube, we saved space in the front triangle for bottles, bags, and other cargo. And by widening the down tube and seat tube, we maintain pedaling stiffness.
- CVA already lends itself to short chainstay lengths and optimal frame geometry. This system also keeps the center of gravity as low as possible so the MCR has a nimble, responsive ride character.

Design details:
- 50 mm CVA suspension travel, specifically tuned for gravel.
- Fully suspended bike and rider; minimum unsprung mass.
- Wide, oversized BB junction for stiffness and strength.
- Shock mount behind seat tube for clean aesthetic.
- Integrated, frame mounted fender with optional upper extension.
- Long-lasting Enduro Max Black Oxide pivot bearings.

Made to range farther and faster:
- As gravel rides and gravel riders become more ambitious, demands on the equipment have expanded. By finally developing a proper full suspension gravel bike, we’re expanding not only the rideable terrain map, but also the rider’s range.
- The MCR can go farther and faster than a typical full suspension mountain bike because it’s more efficient. Plus, it keeps a rider less fatigued and more comfortable over long distances. It’s specifically tuned for the demands of pedaling long distances in the saddle over high-frequency bumps.
- The MCR is simply more versatile and more capable than other bikes. Full suspension allows for higher tire pressures and less rolling resistance on paved and smooth road surfaces, yet it allows a rider to charge through rough terrain at speed.
- For evidence of the demands on today’s gravel bikes, just look at a seasonal event calendar. It’s filled with “this bike? or that bike?” events that demand the pedaling efficiency plus comfort, confidence, and control that only a full suspension bike can offer.

Room to roam:
- Niner gravel bikes have room to fit 700x50c tires (or 650b x 2.0).

Integrated frame mounts:
- You’ll be hard-pressed to run out of room for all your gear. Multiple threaded mounts to fit custom bags, bottles, racks, fenders, lights, and more.

Interchangeable wheel size:
- Niner gravel bikes are designed to fit both 700c and 650b wheels, for ultimate versatility and adaptability to suit any adventure.

Gravel-tuned CVA suspension:
- Supple yet stable, and tuned for gravel. Our patented, proven Constantly Varying Arc system is adapted for the specific demands of gravel.

Integrated fender:
- Cut the crud with the integrated frame fender. An optional bolt-on extension is available for even more coverage.


Features:

- Removeable front derailleur mount
- Integrated mounts for custom frame bags
- Multiple bottle cage mounts inside front triangle
- Multiple bottle cage mounts inside front triangle
- 12x142 rear through axle
- Flat mount disc brake fitment on rear triangle


Specifications:

- Frame material: carbon RDO
- Frame type: Hardtail
- Head tube diameter: 1 1/2 to 1 1/8 tapered
- Headset included: Yes
- Bottom bracket type: 68 mm PF30
- Biocentric compatible: Biocentric 30
- Cable routing: internal
- Front derailleur mount: braze on (removable mount)
- Derailleur pull: Bottom
- Brake mount: Flat Mount
- Seatpost diameter: 27,2 mm
- Rear axle included: Yes. 12x142 mm

- Frame: Niner RDO Carbon fiber; 50 mm CVA suspension; forged alloy links; Enduro Max pivot bearings; internal cable routing; integrated fender; integrated bottle, bag, rack and fender mounts; Flat mount; 12X142 Thru axle
- Fork: FOX AX 32 Stepcast 44 mm
- Shock: X-Fusion Microlite RL w/remote lockout
- Front wheel: TFHPC Grinder 15x100 mm
- Rear wheel: TFHPC Grinder 12x142 mm
- Front tire: WTB Raddler TCS Light Fast Rolling
- Rear tire: WTB Raddler TCS Light Fast Rolling
- Brakes: SRAM AXS Etap Flatmount
- Brake levers: SRAM AXS
- Brake rotors: SRAM Centerline 160/140 mm
- Chain: SRAM XX1 Eagle Rainbow
- Front derailleur: SRAM Etap AXS Wide D1
- Rear derailleur: SRAM AXS 2x12 Etap
- Cassette: SRAM XG1270 D1 10-36
- Crankset: SRAM Force D1 Wide DUB 172.5 43-30
- Bottom bracket: SRAM DUB
- Saddle: Ergon SM Sport Men (Stealth)
- Seatpost: Niner RDO Slate Grey
- Handlebar: TFHPC Aerocross Carbon 460 mm
- Stem: TFHPC Comp+
- Headset: Niner integrated Shis description IS42/28.6|IS52/40
- Tape: Finna Landscape V2
- Frame sizes: 53 cm, 56 cm, 59 cm

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