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Niner Boost RDO Carbon Rigid Fork


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  • Stealth Black, 1.5T, 15x110

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Rigid for the righteous.

Your friends might think you're a little bit loony, but you've got a soft spot for a fully-rigid ride, that's why you've got your eye out for the Niner Boost RDO Carbon Rigid Fork. Pairing perfectly with the Air 9, or just about any other boosted hardtail with a tapered steer tube, this fork is ideal for converting your ride to a snappy and fast rigid steed. Its crafted from Niner's RDO carbon to deliver a light and stiff feel to let you rally through tight switchbacks while maintaining total control. Boost spacing brings things fork into the future, elevating stiffness further with a wide thru-axle, and offering extra tire clearance for plush tires that soak up trail debris.

Big wheels, high speeds, and strong disc brakes can combine to tweak flimsy forks out of alignment, which makes it really hard to hold your line while you're riding steep, high-speed trails. While suspension forks have been rocking burly thru-axles to fight off flex for years, rigid forks are only just catching up. Niner endowed the RDO Carbon with a rugged 15mm RockShox Maxle thru-axle to resists these torsional forces, so your wheel will track straighter and you'll be able to hold a reliable line under braking (and when you're opening the throttle).

The whole RDO Fork is made with Niner's secret sauce carbon fiber, proprietary layups, and tube architecture, so it's light, stiff, and highly responsive. A special carbon weave is designed to maximize carbon's dampening properties, too, so you don't feel like you're getting vibrated to death or bounced around like you're riding a steel fork. At the top, a tapered steering tube integrates seamlessly to provide precise and reliable control with plenty of strength, and its seamless integration reduces stress-prone bonds that can squeak, creak, or worse. To top it off with a sense of adventure Niner equips the fork with rack mounts to carry their share of the load when you dive into overnight getaways into the backcountry.

  • A reliable rigid fork for stiff control
  • RDO construction is light and durable
  • Boost spacing elevates stiffness and tire clearance
  • 15mm Maxle thru-axles resist torsional forces
  • Tapered steer tube integrates with modern mountain bikes
  • Rack mounts offer a sense of adventure for bikepacking getaways
  • Item #NNR008D

RDO carbon fiber
Wheel Size
Steer Tube Diameter
1.125 x 1.5in tapered
Axle To Crown
15 x 110mm Boost
Brake Compatibility
post-mount disc
Rotor Compatibility
160 - 180mm
Recommended Use
mountain biking, gravel,
Manufacturer Warranty
5 years

Tech Specs

What do you think about this product?


>Rating: 5

So far, so good

I've used it once or twice and have initial impressions

I've had this on the bike for a few rides now. The feel is great, vibration is soaked up but without feeling vague like other forks I've ridden. Excited to get some mega miles in with this unit. Looks great on my bike, 10/10 would send again.


Doe this fork come with a star nut or compression cap?

Compression cap.

yes, compression cap