[Sorry if this is a duplicate posting. I got a network error when I
tried posting previously.]
Mike wrote:
> What is difference between treadmills
> "folating deck" system,
> "swing arm/hydra suspension" system
> and "woodway" system.
"Swing Arm", "Hydra Suspension" and "Woodway" suspension are all
trademarked terms of each manufacturer's implementation of a "floating
deck", which provides shock absorption.
> Which one is the best?
Shock absorption is a good thing. But I am sure that you can 3
different answers to the question of which implementation is better

.
Since each term is a trademark of the manufacturer, I suggest that you
look at the overall quality of each treadmill, rather than focus on an
implementation of any particular detail. If you truly have narrowed
your selection down to a model of each of the three manufacturers
(Smooth Fitness, Greenmaster and Woodway) and this is the deciding
factor, I suggest that you try out each of their treadmills to see
which shock absorption appeals to you more. You might also look for
Consumer Reports evaluations, if any, of treadmills by the three
manufacturers.