The Stan’s Flow MK4 is a cornerstone of gravity and trail riding, trusted by Red Bull Rampage riders for its exceptional durability and precise control. This asymmetric rim is engineered to create a stronger, more balanced wheel build that provides maximum confidence on technical terrain.

Optimized Traction and Control: The low-profile 30mm internal width is specifically tuned to optimize the shape and stability of 2.3” to 2.6” tires, enhancing grip and ensuring predictable handling in corners.

Advanced Asymmetric Build: Constructed from durable 6069 aluminum with a welded joint and reinforced spoke bed, the 3mm offset design allows for even spoke tension and a robust, reliable wheel construction.

Legendary Tubeless Performance: Featuring Stan’s patented Bead Socket Technology (BST), this rim offers a seamless tubeless setup and a reliable airtight seal, maintaining performance even under hard cornering and low pressures.

Proven Performance Specs: At 521g for the 29" version, the Flow MK4 balances strength-to-weight for aggressive trail and enduro use, supported by a 3-year rim warranty and 1-year crash replacement.