Stans NoTubes Flow EX3 27.5" Boost 15x110mm Front Wheel

Stan's NoTubes New Flow EX3
The New Stan's Flow EX3 has been made to be extremely durable new line of rims and wheelsets designed for downhill, enduro and the most demanding trails. Based on the legendary Flow EX, the new Flow EX3 rim features Tiebeam, an internal reinforcement that offers unmatched impact resistance and the best air retention of any tubeless rim. The Flow EX3 combines the incredibly durable Tiebeam design of Stan's classic Flow EX with the 29mm internal width and 6069 aluminium construction of the popular Flow MK3 to create an entirely new rim built to handle today's faster, heavier and more capable enduro, downhill and e-bikes. While still delivering the outstanding ride quality for which all Stan's rims have come to be known, the new Flow EX3 is unapologetically focused on descending, speed, air retention and durability.

Handles Extreme Riding Conditions With Ease
Stan's has supplied rims to Downhill World Cup and Enduro World Series teams for years, but the Flow EX3 is the first rim specifically designed from the ground up to handle these more severe riding conditions, and it is already a proven winner. In late 2018, GT Factory pro rider Martin Maes rode a Flow EX3 rear wheel to a win at the Enduro World Series round in Whistler and then to a World Cup Downhill victory in La Bresse.

More than just strong
The Flow EX3 rim is designed to prevent air loss. Even when used with a tire insert, huge impacts can cause the sidewall of most rims to fold, causing air loss and eventual failure, but the Tiebeam internal brace and patented low-profile sidewalls of the Flow EX3 resist this folding, maintaining air pressure and structural integrity better than any other rim, even under the most severe impacts.

Tiebeam Design
The Tiebeam design also allow tremendous strength increases with only minimal weight increases. The 27.5" Flow EX3 rim weighs 580g, while the 29" version weighs only 618g.

Easy Tubless Set Up
Like all Stan's rims, the Flow EX3s are easy to set up tubeless. Thanks to Stan's proven Bead Socket Technology, all that's needed is a floor pump. Optimized for 2.35" to 2.8" tires, the Flow EX3 expands the Flow line to handle the most aggressive riding. Every Downhill World Cup and Enduro World Series ride, every hour of testing, riding and improving, it's all here in the new Flow EX3.