Free 2-Day Shipping on Orders Over $50*
Home Page

Detail Images

  • Niner - MCR RDO 4-Star GRX 1x Gravel Bike - Black/Magnetic Grey

Current Color

Niner MCR RDO 4-Star GRX 1x Gravel Bike

$5,900.00

Free 2-Day shipping on orders over $50. Learn More

Select style & size:

Find your size
|

Note: Actual inseam is not the same as pant inseam.

Recommended Size

We recommend a size in this bike.

EditMore details

Our size calculator is a starting point for finding the right size for you. To get personal advice talk to one of our fit experts at 1.888.276.7130 or chat now

Select options
  • Select options
    • Black/Magnetic Grey, 56cm
      $5,900.00

    Be the first to review

    Details

    MCR RDO 4-Star GRX 1x Gravel Bike

    The MCR RDO exists in the sweet spot between genres, urging us to look at the rough two-track beyond our usual turn-off and see where it goes. The MCR is not the bike we choose for traditional gravel races on graded dirt; we leave that to the RLT RDO. Nor is the MCR the bike for topping the podium on short track cross country races, for that is where the Air and RKT 9 excel. This is the bike for exploring, for going further, all while maximizing pedaling efficiency and ride comfort. With 50mm of rear travel and 40mm front suspension, the MCR allows us to ride over and through terrain that would otherwise leave us yearning for a break.

    The suspension is tuned specifically for the smaller, more frequent bumps we encounter on chunky gravel roads, rather than the larger hits on singletrack. The MCR features the same constant-varying arc linkage as Niner’s full suspension mountain bikes, for a predictable and smooth travel path. Like on a mountain bike, the suspension travel of the frame allows the wheel to stay in better contact with the ground, rather than bouncing across the surface. A planted rear wheel gives us more purchase when climbing on squirrely gravel and allows for a smoother pedal stroke since we aren’t forced to coast over the rougher bits.

    Every component of Niner’s 4-star build focuses on taking you further, and it only makes sense to pair the world’s first dedicated gravel drivetrain with the first full-suspension gravel bike. Shimano’s GRX 1x groupset provides precise and reliable shifts over any terrain. The rear derailleur's clutch mechanism to reduce chain slap and dropped chains for a quieter and more secure ride both on and off-road. GRX levers are shaped for optimal hand position and comfort, both from the hoods and drops, so you can keep a secure grip when the “road” your friend recommended turns into more of an array of boulders. The flat-mount GRX disc brakes control the speed through any weather with hydraulic actuation.

    Rounding out the build, the 40mm Schwalbe G-One tires mounted to Stan’s Grail S1 wheels smooth out the ride, and the frame has clearance for 50mm tires, should you need something more robust down the line. Easton’s EA50 AX handlebar has a 16-degree flare in the drops, giving us a more stable center of gravity for leaning into that bit of singletrack in the middle of a route.

    • World’s first full-suspension gravel bike
    • 50mm of rear CVA suspension allows you to pedal through washboard and rough gravel
    • 11 mounting points for bags and bottles prepare you for multi-day missions
    • Integrated rear fender protects components when the road gets gritty
    • Front and rear thru-axles increase stiffness for greater efficiency and handling
    • Rear shock locks out with handlebar remote
    • Shimano GRX drivetrain keeps shifting precise and predictable over mixed terrain
    • KS Lev dropper post for getting down steeper descents
    • Item #NNR99A6

    Tech Specs

    Frame Material
    RDO carbon fiber
    Fork
    Fox 32 SC Float AX Performance Elite evol FIT4, 40mm travel, 44mm offset
    Headset
    Niner integrated SHIS IS42/IS52
    Shifters
    Shimano GRX 800 11 speed
    Rear Derailleur
    Shimano GRX 800 GS 11 speed
    Crankset
    Easton EA90
    Chainring Sizes
    42t
    Bottom Bracket
    Easton PF30
    Bottom Bracket Type
    PF30
    Cassette
    Shimano Ultegra HG800
    Cassette Range
    11 - 42t
    Chain
    Shimano HG 601
    Brakeset
    [front] Shimano SLX M7100, [rear] Shimano GRX 800
    Brake Type
    disc
    Rotors
    Shimano RT800 160mm centerlock
    Handlebar
    Easton EA50 AX
    Handlebar Drop
    120mm
    Bar Tape
    Niner
    Stem
    Niner RDO
    Saddle
    Niner Custom, Crn-Ti rails
    Seatpost
    Niner Carbon, 400mm
    Wheelset
    Stan's NoTubes Grail S1
    Hubs
    Stan's NEO Ultimate centerlock
    Front Axle
    15 x 100mm thru-axle
    Rear Axle
    12 x 142mm thru-axle
    Tires
    Schwalbe G-One EVO SS
    Tire Size
    700c x 40mm
    Recommended Use
    gravel
    Manufacturer Warranty
    5 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?