Niner MCR 9 RDO GRX 400


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Ride faster, go farther, stay longer
50mm of CVA suspension gives you confidence, comfort, and control on off-road excursions.  By adding Niner's CVA full suspension to a dedicated gravel bike platform, they'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.

PERFECT FOR

  • RIDING FASTER & LONGER
  • GRAVEL GRINDING
  • GROUND HUGGING TRACTION

MAX WHEEL SIZE: 650b x 2.0 or 700 x 50c
SIZE RANGE: 53cm, 56cm, 59cm
SUSPENSION: 50mm
COLORS: Black Gray or Olive Orange

Nine things you need to know:

  1. 50mm of stable yet supple CVA suspension with a refined curve for small bump performance and full travel.
  2. Rear shock lockout with handlebar remote; fork lockout.
  3. RDO carbon fiber main frame and rear triangle with forged, 1-piece linkages.
  4. Integrated rear fender protects suspension components.
  5. 11 fixed mounting points for frame bags, bottles, and more.
  6. Removable front derailleur mount, for 2x and 1x chainring options.
  7. Durable, long-lasting Enduro Max “Black Oxide” pivot bearings.
  8. Clearance for 700x50c and 650b x 2.0 tires.
  9. End-to-end, Full Sleeve internal cable guides including dropper post routing and integrated frame protection.
Size
Color
Black Gray
Olive Orange

- NINER TECHNOLOGY -

  • 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.

  • GRAVE-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.

  • LIFETIME WARRANTY
    Niner has 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.

- Bike Sizing -

Looking for the perfect size? Check out our handy quick reference chart below (NOTE: The chart assumes average limb and torso proportions). Not sure about your size? Just send us your measurements using our Bike Sizing form and one of our experts will help you out!

Rider Height Frame Size
5'5" to 5'9" 53cm
5'8" to 6' 56cm
5'11" to 6'3" 59cm

- TECHNICAL SPECIFICATIONS -

Frame NINER RDO CARBON FIBER: 50MM CVA SUSPENSION; FORGED ALLOY LINKS; ENDURO MAX PIVOT BEARINGS; INTERNAL CABLE ROUTING; INTEGRATED FENDER; BOTTLE, BAG, AND RACK MOUNTS; FLAT MOUNT; 12X142 THRU AXLE
Fork FOX 32 SC FLOAT AX PERFORMANCE ELITE EVOL FIT4, 40MM, 100X15MM, 44MM OFFSET
Shock X-FUSION MICROLITE RL W/ REMOTE LOCKOUT
Front wheel NINER CX ALLOY, CL 100 X15MM FRONT, NINER GRAPHIC
Rear wheel NINER CX ALLOY, CL 142X12MM REAR, NINER GRAPHIC
Front Tire SCHWALBE G-ONE PERFORMANCE, FOLDING, 700 X 40
Rear tire
SCHWALBE G-ONE PERFORMANCE, FOLDING, 700 X 40
Brake levers
SHIMANO GRX400
Brakes SHIMANO GRX400
Brake rotors SHIMANO RT54 160/160MM CL ROTORS
Chain
SHIMANO HG54 10SP
Front shifter SHIMANO GRX400 2SP
Rear shifter
SHIMANO GRX400 10SP
Front derailleur SHIMANO TIAGRA 4700
Rear derailleur
SHIMANO GRX400 10SP
Cassette SHIMANO HG500 11-34
Crankset
SHIMANO TIAGRA RS400 50X34T
Bottom bracket PRESTINE PF30>24MM
Saddle
NINER CUSTOM WITH CHRO-MO RAILS, EMBOSSED NINER GRAPHIC
Seatpost NINER CARBON SEAT POST, 400MM, NINER GRAPHIC
Handlebar
EASTON EA50 AX
Stem NINER RDO STEM, NINER GRAPHIC
Headset
NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40
Grips NINER BAR TAPE
Approximate weight
26.8 lbs

- NINER GEOMETRY -

53cm 56cm 59cm
(A) Top Tube Length
545
571
595
(B) Seat Tube Length
490 520
550
(C) Chainstay Length Actual
440
440
440
(D) Horizontal Chainstay
437
437
437
(E) Front Center
609
623
639
(F) Wheelbase
1041
1055
1072
(G) BB Drop 62
62
62
(H) Headtube Length
133
153
173
(I) Headtube Angle
71.0
71.5
72.0
(J) Seattube Angle
73.8
73.5
73.3
(K) Standover Height
764
789
816
(L) Reach
382
394
409
(M) Stack
575
597
618
(N) Fork Rake
44
44
44


- WARRANTY -

We're an authorized Niner dealer, which means that every bike we sell is backed by Niner's warranty, including a one-year complete bike warranty and a lifetime frame warranty.  For full details, click here.

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