At the core of every FDF fitness machine is our patented Twin Tank adjustable Fluid Resistance. Each machine offers a range of resistance from feather-light to Olympic intensity, all the while remaining silky smooth at any speed.

FDF designed and manufacture both Horizontal and Vertical tank formats, all with a large range of Fluid Resistance, all super smooth to use, and all with their unique sight, sound, and feel. There is a lot of science as to why our adjustable Fluid Resistance tanks work so well, the detail of which is revealed within the website pages of the three FDF product ranges: FluidRower, FluidExercise, and FluidPowerZone.