Stan's NoTubes Flow MK4 Wheel

The 30mm internal rim width is specifically optimized for tires between 2.3 and 2.6 inches wide. This profile provides the ideal balance of sidewall support and traction for aggressive trail riding.

Yes, the rim features Stan's signature BST-Asymmetric design, which is engineered for a secure, easy tubeless setup. You will just need to add your preferred sealant and install your tubeless-ready tires.

The M-pulse hubs are designed for easy serviceability, allowing you to access and maintain the internals without specialized tools. The use of high-quality Enduro bearings also helps extend service intervals compared to standard hub bearings.

This wheel is compatible with 6-bolt disc brake rotors. Please ensure your current bike frame uses a 12mm x 148mm thru-axle spacing, as this is a Boost-standard rear wheel.

This specific model comes with a SRAM XDR cassette body. If you are running a Shimano drivetrain, you will need to swap the freehub body to a Shimano-compatible version before installation.

6069 aluminum is significantly stronger and more durable than the 6061 alloy commonly used in many other rims. This allows the Flow MK4 to handle the impacts of aggressive trail riding while maintaining a reliable, long-lasting structure.