Stan's NoTubes Flow MK4 Rim 29" black/grey

Since 2007, the Flow rim has helped riders progress, push their limits and achieve more on their bikes. The original Flow was light, wide, tubeless, and strong as hell. It redefined mountain bike rims and played a role in the evolution of riding. Today's Flow MK4 continues the evolution with a 30mm-wide asymmetrical rim designed for an even more stable wheel.

Durability and an almost uncanny sense of control on the trail have made Flow rims the preferred choice of numerous Red Bull Rampage riders, and today's Flow goes even further. The Flow MK4's reinforced spoke bed combined with the offset bore of the asymmetrical design results in an incredibly durable wheel that provides added confidence on every ride. Unlike many other asymmetric rims, the BST Asymmetric shape of the Flow MK4 is designed to provide the same resistance to dents and tyre bulging on both sides of the rim, even in the worst scree and toughest corners. Combined with Stan's patented Bead Socket Technology, the Flow rim offers the easiest tubeless setup and most reliable airtight performance on the trail.

Boost your progress and make every ride a more confident one with the asymmetrical Flow MK4 rim.