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Niner RLT 9 RDO 4-Star Ultegra Complete Bike - 2018

Niner RLT 9 RDO 4-Star Ultegra Complete Bike - 2018

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Item # NNR008B

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Gravel, on your terms.

Gravel calls and beckoning that call are reformed road riders and mountain bikers looking for an adventure right from the front door. Riding eventually leads to racing whether that's against yourself, a group of buddies, or actually signing up for an event, and with that, the need for a high performance, carbon fiber race machines that can survive the abuse of a long hard gravel event and be lightweight and efficient. If you are looking for that one bike to do so many things well or are planning on tackling some sanctioned and unsanctioned races, Niner's 2018 RLT 9 RDO 4-Star Ultegra Complete Bike provides lightweight carbon construction, dialed all-road geometry, and durability that'll have you pushing the pace on that first gravel climb, either solo or in a group of 150.

The RLT, is a touch slacker, longer, and lower than the cyclocross-specific frameset from the same brand, the BSB 9. It even gets a few geo tweaks compared to the aluminum and steel RLT as well giving it a more responsive ride. Shorter chainstays trim up the rear triangle and work in unison with the shortened wheelbase for slightly quicker handling that is still plenty stable. Over rough, washboard roads the frame forges ahead and provides a great deal of comfort while still retaining the agility leap forward when climbing out of the saddle and handle with precision on high-speed descents. To boost its versatility and lend a hand when called upon for commuting and bikepacking duties, the dropouts and fork legs have integrated rack and fender mounts offering an array of setup options. Niner wisely builds the RLT RDO with a replaceable hanger so even if you take a low-side drive-side spill or your trusty steed falls over at a rest stop, you can replace the bent or broken hanger and ride on.

As with the rest of Niner's carbon frames, this RLT 9 uses its Race Day Optimized (RDO) Carbon Compaction System to mold this RLT's frame. This allows Niner the ability to fine tune the carbon layup and eliminates any material that doesn't contribute to the frame's structural soundness or ride quality. Helping enhance the ride further, the RLT uses a 27.2mm seatpost, which adds compliance to help absorb bumps along the ride so you won't face additional fatigue from a stiff ride.

Shimano's excellent Ultegra R8020 gets called up for shifting and braking duties. The 50-34t chainrings and 11-34 provide reliable shifting and plenty of range of all-day epics while the hydraulic brakes offer tons of modulation and power down the longest, steepest descents. Rolling on an excellent set of Stan Grail tubeless wheels, this build provides all the performance you need and won't leave you seeking out anything more.

  • Niner's gravel rig with RDO carbon
  • Allroad geometry blends responsiveness and stability
  • RDO carbon construction balances stiffness and weight
  • Thru-axles increase stiffness for a snappy ride
  • Rack mounts on stays and fork for bikepacking adventures
  • Stan's rims and Schwalbe tires offer tubeless perfection
  • Shimano's Ultegra drivetrain delivers confident gear shifts

Tech Specs

Frame Material:
RDO carbon
Niner RDO
Fork Material:
RDO carbon
Niner IS42/52
Shimano Ultegra R8020
Front Derailleur:
Shimano Ultegra R8000
Rear Derailleur:
Shimano Ultegra R8000 GS
50 / 34t Shimano Ultegra R8000
Bottom Bracket:
Wheels Mfg PF30>24mm
11 - 34t Shimano Ultegra HG8000
Shimano HG 701
Shimano Ultegra R8070
Brake Type:
hydraulic disc
[front] 140mm, [rear] 140mm Shimano RT800 centerlock
Easton EA50 AX
Bar Tape:
Niner alloy
Niner custom w/ CrMo rails
Niner custom, cro-mo rails
Seat Collar:
Stans Grail
Front Axle:
15mm Thru-Axle
Rear Axle:
12 x 142mm
[front] Schwalbe G-One EVO SS, [rear] Schwalbe G-One EVO SS
Tire Size:
[front] 700c x 38mm, [rear] 700c x 38mm
not included
Recommended Use:
Manufacturer Warranty:
5 years on frame

Size Chart


Geometry Chart



Seat Tube


Effective Top Tube






Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop




47cm 43cm 51cm 53.5cm 36.2cm 69.3cm 10.5cm 70o 74.5o 7.5cm 43cm 100cm
50cm 46cm 52.5cm 55.6cm 36.6cm 73.1cm 12.5cm 70.5o 74o 7.5cm 43cm 100.7cm
53cm 49cm 54.5cm 57.7cm 37.4cm 75.4cm 14.5cm 71o 73.5o 7.5cm 43cm 101.7cm
56cm 52cm 56.5cm 59.2cm 38.4cm 78cm 16.5cm 71.5o 73o 7cm 43cm 103cm
59cm 55cm 58.5cm 61.3cm 39.8cm 80.4cm 18.5cm 72o 73o 7cm 43cm 104.5cm
62cm 58cm 60.5cm 63.4cm 40.5cm 82.7cm 20.5cm 72.5o 72.5o 7cm 43cm 105.4cm

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