STAN'S flow mk4 front wheel - 27,5'' - 15x110 ta - 6-bolt - gray

The Flow MK4 wheelset empowers you to push your limits on every trail. Since 2007, top riders worldwide have trusted Stan’s for their high-performance mountain bike wheels. Designed for cornering harder, sending it further, and maintaining higher speeds through challenging terrain, the Flow MK4 offers exceptional control and durability.

Featuring Stan’s patented BST-Asymmetric rim shape, the Flow MK4 ensures a reliable tubeless seal. Its robust 6069 aluminum construction and reinforced spoke bed, combined with the offset drilling of the asymmetric design, create a highly durable wheelset that boosts rider confidence. The single spoke length used on both front and rear wheels simplifies maintenance and enhances strength, thanks to traditional J-bend spokes and proven lacing patterns.

The M-pulse hubs at the core of the Flow MK4 deliver magnetic locking engagement for ultra-smooth rolling and unmatched durability. Based on the innovative Project321 system, these hubs feature six Neodymium magnets that minimize resistance during coasting and lock the pawls securely when power is applied. Crafted from 7075 aluminum with Enduro double-row bearings, the hubs are fully shielded for all-weather performance. With a quick 1.66° engagement angle and adjustable preload, they provide instant power transfer and reduced drag for maximum speed.

Compatible with Shimano Micro Spline, HG, or SRAM XDR freehubs and available in 6-bolt or Centerlock disc options, the Flow MK4 is tubeless-ready with rim tape pre-installed. Its 30mm internal width optimizes tire shape, traction, and control for 2.3–2.6” tires. Durable, lightweight, and versatile, the original Flow redefined mountain bike rims—today’s MK4 model gives you even greater confidence on every ride.