Select your style & size:Select options
The Niner XC Carbon Boost Wheelset is a lightweight, bombproof set of race-ready hoops with industry-leading tubeless design and beefy axle widths. Billed as a fast rolling cross-country wheelset, the Niner XC rim features a wide 24mm internal width and 30mm outer width and is built with carbon fiber, both of which help address typical 29er rim complaints by providing a light, stiff platform.
We're confident calling these industry-leading tubeless rims because Niner borrows Stan's NoTubes' tubeless rim design, dubbed Stan's Bead Socket Technology (BST). BST features low-profile sidewalls that provide a better seat for the tire bead and allow for a pile of benefits compared to standard rims with higher sidewalls. When run as tubeless, BST provides an exceptional seal while allowing the tire to hold a greater volume of air than rims with lower bead seating. This interface allows the tire to maintain its full shape for a wider, more stable rolling platform.
When paired with BST, a tubeless setup's ability to run up to 30% lower air pressure than clinchers results in exceptional tire stability, better handling, solid cornering, and better overall control. If you prefer clinchers, these rims are compatible with them, and the lower sidewall drastically reduces pinch flat risk by reducing the amount of material present for the tube to pinch against. This means less time sitting in the dust wrestling with a flat at the side of the trail and more time shredding your favorite loops.
Niner utilizes an offset spoke hole drilling pattern in the XC Carbon rim that allows for even spoke tensions across the wheel, which improves lateral stiffness and overall durability compared to wheels with standard spoke holes. This means not only does this wheelset feel faster and more responsive off the line and out of corners, but it's also built to withstand whatever you or the trail throw at it.
- A race-ready XC wheelset
- Carbon rims remedy the usual 29er floppiness
- Boost axle widths increase stiffness
- Unmatched tubeless reliability with Stan's BST rim design
- Offset rear spoke holes allow even spoke tensioning
- Item #NNR003Z
- Q & A
Are the Niner Carbon wheels tubeless ready? Or does one need to use tubeless tape first?