-8-
A.
Flywheel
B.
Rotating Magnet Housing
C.
Cutaway Revealing Magnet
KINETIC ENERGY
In physics, the kinetic energy of an object is the energy that is created due to its motion. Kinetic energy
is defined as the work needed to accelerate a given mass from rest to its current velocity. Upon equalizing
this energy during its acceleration, the body of mass maintains this energy unless its speed changes. The
formula for kinetic energy is mass multiplied by velocity
2
, divided by 2. The standard unit measurement
of kinetic energy is the joule.
KINETIC ENERGY
=
(MASS
X
VELOCITY
2
)
/
2
(measured in joules)
EDDY CURRENT MAGNETIC RESISTANCE
An eddy current is an electric current in a conducting material that results from induction by a moving
or varying magnetic field. In the M Series, the eddy current is generated by the flywheel passing through
two opposing magnets. The flywheel (a conductor) passes through the magnetic field generated by the
two powerful magnets located in the magnet housing. By increasing or decreasing gears, the rider is varying
how much of the magnetic field comes into contact with the flywheel, thus increasing or decreasing the
amount of resistance accordingly. The magnetic resistance also allows the cyclist to enjoy a smoother,
quieter and more predictable training session.
CONCEPT APPLICATION:
Here’s a bit of helpful information you can share with participants, perhaps during the warm-up:
“Did you know the flywheel on your bike is set between two opposing magnets? Keiser was the first
company to use eddy current magnetic resistance in indoor cycling. When you change gears, more
(increase gears) or less (decrease gears) of the magnet is exposed to the flywheel — that’s what
generates the feeling of resistance as you pedal. Magnetic resistance also creates a smoother,
quieter ride. Let’s try it together now!”
TECHNOLOGY
