Stan's NoTubes Flow MK4 Wheelset
The standard-setting tubeless alloy trail wheel
Specifications
- Wheel Size
- 27.5" / 29"
- Rim Inner Width
- 30mm
- Weight
- Front: ~840g, Rear: ~1020g
- Axle
- Front: 15x110mm Boost, Rear: 12x148mm Boost
- Spokes
- 28H / 32H
- Rim Design
- Asymmetric
Overview
Stan's NoTubes Flow MK4 is the fourth generation of the legendary Flow rim, refined over years of World Cup enduro and trail racing. The MK4 features a 30mm inner width, an asymmetric rim design for more even spoke tension, and the proven Stan's tubeless bead shelf. Laced to Stan's Aeris hubs for reliable engagement and smooth rolling.
Features
Gen 4 Flow rim with optimized asymmetric profile
30mm inner width for modern tire fitment
Stan's NoTubes tubeless-ready bead shelf
Stan's Aeris hubs
Tubeless tape and valves included
Ideal for trail and all-mountain riding
Guides for setup
All guidesWheel Maintenance
Truing, spoke tension management, and hub service — keep your wheelset race-ready and fatigue-free.
Component Compatibility
Avoid expensive fit mistakes between forks, wheels, tires, and cockpit parts before you buy.
Tire Selection & Setup
Choosing the right tread, compound, and pressure for your terrain.
Tubeless Maintenance
Keeping your tubeless setup reliable and performing
Tire Inserts
When inserts help, what they cost in weight and feel, and how to choose the right level of support.
How we evaluate this component
Product cards, analysis notes, and setup guidance are grounded in public specifications, market positioning, compatibility, and the most likely real-world use cases on trail.
Read the full methodology