Make every workout count with the Saris Fluid 2 Indoor Bike Trainer. Better health. Faster splits. More me-time. Whatever your goals may be, the Fluid2 helps you get the most out of each indoor training ride. The large, precision-balanced flywheel (with patented fan design) lets you easily customize each ride simply by shifting gears, just as you would outside. This design also helps keep your Fluid2 working better – longer. And thanks to the built-to-last manufacturing process, the Fluid2 can help you conquer one goal after the next. Want to train with Zwift or Rouvy? All you need is a speed sensor.