Niner 2020 RLT RDO 2-Star (Baja Blue/Sand) (50cm)

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  • 50cm
  • 59cm
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Rather than designing a no-fun, no-frills, uber-light and too-stiff carbon chassis for the newest RLT 9 RDO, Niner built you a bike that you’ll want to ride all the time, to any place. With more tire clearance, integrated bag mounts, and a slick frame that offers an unbelievably smooth ride, you can pedal it and be happy-anywhere and everywhere. The Niner RLT RDO is a gravel bike designed to make the miles sail past.   Shimano's budget-friendly, gravel-specific GRX400 parts kit pairs with Niner wheels, Schwalbe tires, Shimano Tiagra RS400 crankset, and Easton handlebar in a value-priced gravel-grinding package.

Niner incorporates their race day carbon fiber construction into the frame and fork for a ride that is second to none. As a company that prides themselves on being "lifelong gravel addicts", they seem to know a thing or two when it comes to venturing off the pavement. Niner's RDO carbon fiber is light enough and stiff enough to satisfy even the most selective gravel racers. But rather than focusing on creating the lightest, stiffest frame for racing, Niner takes a more thought out approach in maintaining a healthy dose of bump-absorbing compliance for a ride that begs you not to slow down. 

This dream bike has 26 mounting points that gives you the option to outfit your bike with as many bags, racks, and bottles as you need to make it through your adventures. Niner also designed custom bags for each specific frame size that mount directly to the frame for a clean and sleek look.


  • 26 threaded frame mounts to carry all of your adventure gear
  • Room to roam with clearance for tires up to 700c x 50 (650b x 2.0)
  • Fireroad geometry designed to keep you comfortable on those long rides
  • Interchangeable wheel sizes for versatility and adaptability to suit every adventure
  • Biocentric BB to fit any drivetrain 
  • Niner RDO gravel tuned carbon fork with rack, fender, and bottle mounts

Frame: Niner RDO Carbon Fiber  
Front Wheel: Niner CX alloy clincher (12 x 100mm TA) 
Front Tire: Schwalbe G-One Performance (700 x 40) 
Brakes: Shimano GRX400  
Rotors: Shimano RT54 (160/160mm) 
Front Shifter: Shimano GRX400 
Front Derailleur: Shimano Tiagra 4700 
Cassette: Shimano HG500 (11-34t) 
BB: Prestine PF30>24mm 
Seatpost: Niner Alloy (400mm) 
Stem: Niner Alloy Stem 
Grips: Niner Bar Tape 
Fork: Niner RDO full carbon 
Rear Wheel: Niner CX alloy clincher (12 x 142mm TA) 
Rear Tire: Schwalbe G-One Performance (700 x 40) 
Chain: Shimano HG54 10sp 
Rear Shifter: Shimano GRX400 10sp 
Rear Derailleur: Shimano GRX400 10sp 
Crankset: Shimano Tiagra RS400 (50-34t) 
Saddle: Niner Custom w/ chromoly rails 
Handlebar: Easton EA50 AX 
Headset: Niner integrated 

*Note: These bikes are fully built by our expert bike builders, then partially disassembled as needed for shipping. Bikes will arrive to you with some basic assembly still required.

This product was added to our catalog on February 12, 2020

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (Meters)
47cm4'11" - 5'3"1.5 - 1.6m
50cm5'2" - 5'6"1.57 - 1.68m
53cm5'5" - 5'9"1.65 - 1.75m
56cm5'8" - 6'1.73 - 1.83m
59cm5'11" - 6'3"1.8 - 1.91m
62cm6'2" - 6'6"1.88 - 1.98m

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.


(A) Top Tube Length510mm525mm545mm565mm585mm605mm
(B) Seat Tube Length430mm460mm490mm520mm550mm580mm
(C) Chainstay Length Actual430mm430mm430mm430mm430mm430mm
(D) Horizontal Chainstay425mm425mm425mm425mm425mm425mm
(E) Front Center581mm589mm600mm611mm626mm634mm
(F) Wheelbase1000mm1007mm1017mm1030mm1045mm1054mm
(G) Bottom Bracket Drop75mm75mm75mm70mm70mm70mm
(H) Headtube Length105mm125mm145mm165mm185mm205mm
(I) Headtube Angle70.0°70.5°71.0°71.5°72.0°72.5°
(J) Seat Tube Angle74.5°74.0°73.5°73.0°73.0°72.5°
(K) Stand Over Height693mm731mm754mm780mm804mm827mm
(L) Reach362mm366mm374mm384mm398mm405mm
(M) Stack535mm556mm577mm592mm613mm634mm
(N) Fork Rake45°45°45°45°45°45°
(A) Top Tube Length20.1"20.7"21.5"22.2"23.0"23.8"
(B) Seat Tube Length16.9"18.1"19.3"20.5"21.7"22.8"
(C) Chainstay Length Actual16.9"16.9"16.9"16.9"16.9"16.9"
(D) Horizontal Chainstay16.7"16.7"16.7"16.7"16.7"16.7"
(E) Front Center22.9"23.2"23.6"24.1"24.6"25.0"
(F) Wheelbase39.4"39.6"40.0"40.6"41.1"41.5"
(G) Bottom Bracket Drop3.0"3.0"3.0"2.8"2.8"2.8"
(H) Headtube Length4.1"4.9"5.7"6.5"7.3"8.1"
(I) Headtube Angle70.0°70.5°71.0°71.5°72.0°72.5°
(J) Seat Tube Angle74.5°74.0°73.5°73.0°73.0°72.5°
(K) Stand Over Height27.3"28.8"29.7"30.7"31.7"32.6"
(L) Reach14.3"14.4"14.7"15.1"15.7"15.9"
(M) Stack21.1"21.9"22.7"23.3"24.1"25.0"
(N) Fork Rake45°45°45°45°45°45°