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Item # NNR0039

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  • Green, 80mm ($89.00)
  • Red, 80mm ($89.00)
  • Green, 90mm ($89.00)
  • Red, 90mm ($89.00)
  • Tangerine, 90mm ($89.00)
  • Green, 100mm ($89.00)
  • Red, 100mm ($89.00)
  • Green, 110mm ($89.00)
  • Red, 110mm ($89.00)
  • Slate Grey, 100mm ($89.00)
  • Slate Grey, 110mm ($89.00)
  • Slate Grey, 80mm ($89.00)
  • Slate Grey, 90mm ($89.00)
  • Rally Blue, 110mm ($89.00)
  • Rally Blue, 80mm ($89.00)
  • Rally Blue, 90mm ($89.00)
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Item # NNR0039

Switching it up.

For a while, aluminum was the red-headed stepchild of high-performance bike components, but that's all changing with gear like the Niner RDO Stem. It's seriously light, at just 115g in the largest 110mm length, and strong enough to charge anything you feel like pointing your bike at. Two bolts lock onto the steerer tube, four more exercise a kung-fu grip on your handlebars, and the glossy finish looks killer on any bike.

  • Aluminum construction
  • Two-bolt steerer tube clamp
  • Four-bolt handlebar clamp
  • 115g in the 110mm length

Tech Specs

aluminum (30% recycled)
80 mm, 90 mm, 100 mm, 110 mm
6 deg
Clamp Diameter:
31.8 mm
Steer Tube Diameter:
1.125 in
Bar Attachment:
4-bolt clamp
Actual Weight:
Slate Grey, 90mm: 110g
Recommended Use:
mountain bike

Reviews & Community


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The Perfect Connection

  • Familiarity: I've put it through the wringer

Connecting your fork to your bars is a pretty utilitarian task, but the Niner RDO stem does it in style. The stem is light and provides just enough pop to make your ride stand out. I love the carefully coordinated graphics, designed to go well with a broad range of frame colors. I have had zero issues with the stem after installing it over a month ago.

Great Stem

  • Familiarity: I've put it through the wringer

Love Niner products, this is my second niner rdo stem for my second build. Its not carbon but its super light and strong. Love this stem!

Nice Build

  • Familiarity: I've put it through the wringer

Looks nice, bolts are painted, surface is shiny. Color options are great. Compliments the RDO seatpost very well. Fours stars because, really, what does a 5-star stem feel like? This one is as good as any out there.