Kinetic's Road Machine Fluid Trainer is perfect for those who don't want to miss a second of their training during those cold winter months. It's the perfect workout tool for sprints or intervals or all-day cruising. Quiet. Smooth. And like every Kinetic Fluid Trainer, 100% leak-proof. The Road Machine gives you true outdoor ride simulation by automatically adjusting resistance as you change speeds and shift gears-just like riding outside.Kinetic Road Machine Fluid Trainer Features: Quiet, smooth, progressive resistance precisely replicates outdoor ride feel The most reliable fluid trainer available Fully assembled Pairs with Kinetic inRide Watt Meter for power training