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2021 MCR 9 RDO

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Due to Covid-19 limitations some products might not be in stock. Please call or email to confirm availability.
$3,000.00 - $7,500.00
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Ride faster, go farther, stay longer

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 drop bar bike with superior comfort, power delivery, and pure, unadulterated fun.

The suspension question: asked and answered

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. We've been pioneers in off road technology. First, it was the 29er wheel size. In 2008, it was our Constantly Varying Arc full suspension design. In 2013, it was the first RLT gravel bikes, purpose built for the demands of long days pedaling on rough surfaces.

Fourteen years later, the MCR 9 RDO is a natural extension of our original effort. When you ride one, you'll see. More comfort, more confidence, more control, and more fun and freedom. 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.

Gravel tuned CVA suspension

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 like you'd find on our mountain bikes.

In the MCR 9 RDO, we made the most sophisticated, tunable suspension system possible, with minimum unsprung weight. By suspending as much of the bike and rider mass as possible, we achieve the most sensitive, compliant ride possible. For the suspension to be effective for riders who are seated and pushing on the pedals, this was a critical piece of the full suspension puzzle to nail down.

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.

Control and comfort, for confidence like no other

The MCR 9 is more than a gravel bike. It doesn't skitter and skate through 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.

Nine things you need to know

  • 50mm of stable yet supple CVA suspension with a refined curve for small bump performance and full travel.
  • Rear shock lockout with handlebar remote; fork lockout.
  • 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, for 2x and 1x chainring options.
  • Durable, long-lasting Enduro Max “Black Oxide” pivot bearings.
  • Clearance for 700x50c and 650b x 2.0 tires.
  • End-to-end, Full Sleeve internal cable guides including
    dropper post routing and integrated frame protection.

Features

  • 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.

  • Lifetime Warranty

    We have you covered with warranty service, small parts, and a support team that actually answers the phone. So go ahead, search out a gravel road you've always wanted to explore.

  • Integrated fender

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

Doccuments

Click for 5 STAR SRAM FORCE AXS 1x LTD Specification

Click for 5-STAR SHIMANO GRX 800 2X Specification

Click for 5-STAR SHIMANO GRX 800 1X Specification

Click for 4-STAR SHIMANO GRX 800 2X Specification

Click for 4-STAR SHIMANO GRX 800 1X Specification

Click for 3-STAR SRAM RIVAL 1 Specification

Click for 2-STAR SRAM APEX 1 Specification

Click for Frame Only Specification

Geometry Size

Click for 2021 MCR 9 RDO Geometry Details

Maximum front suspension:
50mm
Shock size:
160 x 20
Shock mounting hardware:
M8x22 (top and bottom)
Suggested shock sag:
15 25% (moves the o ring 3 5mm down the shock shaft)
Seatpost size:
27.2mm
Seat collar size:
31.8mm
Cable routing:
Full Sleeve internal | Di2 compatible
Front derailleur:
braze on (removable mount)
Headset size:
1.125 X 1.5" TAPERED ZERO STACK HEADSET INCLUDED | 44MM UPPER | 56MM LOWER | CANE CREEK DESCRIPTION: ZS44/28.6 ZS56/40"
Pivot bearing specs:
Enduro Max
Chainring compatibility:
Compatible with standard 1X and 2x systems
Maximum chainring size:
n/a
Q Factor:
168mm
ISCG compatibility:
no
Bottom bracket type:
68MM PF30 BB SHELL (ADAPTORS REQUIRED FOR BSA TYPE BBs)
Brake mount type:
Rear: 30mm flat mount; Front: post mount (varies by fork)
Maximum rear rotor size:
160mm
Rear wheel spacing:
12x142mm
Front wheel axle spacing:
15x 100mm thru axle
Max tire size:
Frame Clearance for 50C tires; max tire clearance of suspension forks varies by brand. Check with fork mfg.