Saris Fluid² Trainer. Cycle Ops Bike trainer.

Almost new, used only 5 times. With a wide range of resistance and a smooth road-like feel.Wheel-On: Connects to rear wheel of bike, no need to remove wheel or disassemble bike.Foldable Classic frame with spring loaded, bolt-action lever. Clutch knob, clicks like a gas cap to indicate correct roller-to-tire tension. Alloy, precision-machined alloy resistance roller reduces tire wear and slippage. External, self-cooling mechanisms, including patented fan design, keep unit performing longer.