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NinerRLT 9
RLT e9 RDO 4-Star GRX e-Bike


Item # NNR99AE

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  • Electric Moss, 50cm ($5,995.00)
  • Electric Moss, 53cm ($5,995.00)
  • Electric Moss, 56cm ($5,995.00)
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Item # NNR99AE

Why We Like The RLT e9 RDO 4-Star GRX e-Bike

At the end of a 60-mile day on long stretches of gravel with the wind in our face, the last thing we're looking forward to is 15 miles of punchy hills. But, that's what's between us and the car, so it's a good thing we've got the power of Niner's first e-gravel bike behind us. The RLT e9 RDO 4-Star GRX e-Bike is at home on everything from smooth tarmac to choppy gravel, and it's uber-fast with speeds up to 28 miles per hour thanks to the Bosch Performance Line Speed drive system. It gives us a push up those hills and speed over the flats, and that's just what we're looking for on long rides.

  • Niner claims their first e-gravel bike that's fit for all our adventures
  • Bosch Performance offers speeds up to 28mph and a 500wh battery
  • Shimano GRX drivetrain and brakes offer constant reliability
  • RDO carbon fiber frame and fork are tested to mountain bike standards
  • MTB flat bar component interchangeability for added versatility
  • Interchangeable wheel sizes are designed to fit both 700c and 650b

Tech Specs
Frame MaterialNiner RDO Carbon
ForkNiner RDO Carbon
HeadsetNiner Integrated SHIS Description IS42/286
ShiftersShimano GRX
Rear DerailleurShimano GRX 800
ComputerBosch Purion
Drive SystemBosch Gen4 Performance Line CX
Motor Power350W
Battery TypeBosch Powertube 500Wh
Battery Energy500Wh
Max Speed28pmh
CranksetPraxis Bosch G4 ISIS
Chainring Sizes42t
Crank Arm Length170mm, 172.5mm, 175mm
CassetteShimano SLX M7000
Cassette Range11-42t
ChainShimano CN-E8000
BrakesetShimano GRX 400
Brake Typecenterlock disc
RotorsShimano RT-EM810 (180mm)
HandlebarEaston EA50 AX
Handlebar Drop120mm
Handlebar Width420mm, 440mm, 460mm
Bar TapeNiner bar tape
StemNiner alloy stem
Stem Length[50cm, 53cm, 56cm, 59cm] 90mm
SaddleNiner custom with CR-MO rails
SeatpostNiner carbon
WheelsetStans NoTubes Arch D Formula
Hubs[front] Formula CL-811, [rear] Formula ECT-148S
Front Axle15 x 110mm
Rear Axle12 x 142mm
Tire Clearance50mm
TiresSchwalbe G-One Speed Performance
Tire Size700 x 50c
Pedalsnot included
Manufacturer Warranty5 years

Actual Weight


Claimed Weight

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What do you think about this product?



It says Mfg. warranty 5 years is that everything or just the frame? If the 5 yr warranty doesn't include the Bosch motor, battery & control unit what is the Mfg. warranty on those items? Thanks


I realize it's a very subjective question, but what's expected run time/mileage can be expected from this motor/battery combo? Thanks!

Hi Kirk, A very loaded question as you know, however according to what is listed on the Niner website "500wh integrated, externally removable downtube battery offers easy access and robust range of 50km (avg). (roughly 31 miles)