Bike Comparison
    MSRP
    $4,700$1,799
    Where to Buy
    $3,249

    31% off At Cambria Bike

    $1,799

    At Trek

    $1,799

    At Biloxi Bicycle Works

    Category
    GravelGravel
    Weight
    26.8 lbs21.6 lbs
    4.9
    3.0
    CarbonAluminum
    Fork
    Fox Performance Elite 32 AXCarbon
    Wheels
    AluminumAluminum
    Wheel Size
    700c700c
    Clearance
    50c
    Brakes
    Hydraulic DiscMechanical Disc
    Groupset
    GRX 400, TiagraApex
    Drivetrain
    2 × 101 × 11
    Suspension
    FullRigid
    Front Travel
    40mm-
    Rear Travel
    50mm-
    Brand Site

    ninerbikes.com

    trekbikes.com

    Summary
    The Niner MCR 9 RDO - 2-STAR SHIMANO GRX 400 is a carbon frame gravel bike with mid-range components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    2025 Checkpoint ALR 4
    Other Gravel bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    39 mph

    2020 MCR 9 RDO - 2-STAR SHIMANO GRX 400

    31 mph

    2025 Checkpoint ALR 4

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    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

    BB StandardPF30, 68mm, Press Fit

    Tire Clearance50c

    300 Series Alpha Aluminum, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm thru axle

    BB StandardPF30, 68mm, Press Fit

    Tire Clearance50c

    Fork

    FOX 32 SC FLOAT AX PERFORMANCE ELITE EVOL FIT4, 40MM, 100X15MM, 44MM OFFSET

    Checkpoint, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

    Shock

    X-FUSION MICROLITE RL W/ REMOTE LOCKOUT

    Bottom Bracket

    68MM PF30 BB SHELL (ADAPTORS REQUIRED FOR BSA TYPE BBs)

    SRAM DUB, T47 threaded, internal bearing

    Headset

    NINER INTEGRATED SHIS DESCRIPTION IS42/28.6|IS52/40

    Stem

    NINER RDO STEM, NINER GRAPHIC

    Size: 49, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: 52, 54, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 56, 58, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 61, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length

    Handlebar

    EASTON EA50 AX

    Size: 49, Bontrager Elite Gravel, 38cm width; Size: 52, Bontrager Elite Gravel, 40cm width; Size: 54, 56, Bontrager Elite Gravel, 42cm width; Size: 58, 61, Bontrager Elite Gravel, 44cm width

    Saddle

    NINER CUSTOM WITH CHRO-MO RAILS, EMBOSSED NINER GRAPHIC

    Size: 49, 52, Bontrager Verse Comp, steel rails, 155mm width; Size: 54, 56, 58, 61, Bontrager Verse Comp, steel rails, 145mm width

    Seatpost

    NINER CARBON SEAT POST, 400MM, NINER GRAPHIC

    Bontrager alloy, 27.2mm, 12mm offset, 330mm length

    Grips

    NINER BAR TAPE

    Groupset
    Rear Derailleur

    SHIMANO GRX400 10SP

    SRAM Apex 1, long cage, 42T max cog

    Front Derailleur

    SHIMANO TIAGRA 4700

    Crank

    SHIMANO TIAGRA RS400 50X34T

    Size: 49, SRAM Apex 1, 40T, DUB Wide, 165mm length; Size: 52, SRAM Apex 1, 40T, DUB Wide, 170mm length; Size: 54, 56, SRAM Apex 1, 40T, DUB Wide, 172.5mm length; Size: 58, 61, SRAM Apex 1, 40T, DUB Wide, 175mm length

    Shifters

    SHIMANO GRX400 10SP

    SRAM Apex, 11 speed

    Cassette

    SHIMANO HG500 11-34

    SRAM PG-1130, 11-42, 11 speed

    Chain

    SHIMANO HG54 10SP

    SRAM PC-1130, 11 speed

    Brakes

    SHIMANO GRX400

    Tektro C550 mechanical disc brake, dual piston, flat mount

    Brake Levers

    SHIMANO GRX400

    Wheels
    Rims

    Front: NINER CX ALLOY, CL 100 X15MM FRONT, NINER GRAPHIC, Rear: NINER CX ALLOY, CL 142X12MM REAR, NINER GRAPHIC

    Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve

    Spokes

    14g stainless steel, black

    Front Hub

    Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle

    Rear Hub

    Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle

    Tires

    Front: SCHWALBE G-ONE PERFORMANCE, FOLDING, 700 X 40, Rear: SCHWALBE G-ONE PERFORMANCE, FOLDING, 700 X 40

    Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40mm

    Disc Rotors

    SHIMANO RT54 160/160MM CL ROTORS

    Tektro, centerlock, 160mm

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