kPulley2, Sorinex
®
rack manual v1.3
INTRODUCTION
What is it? The kPulley is a compact exercise device used for
predominantly horizontal actions. It is a flywheel exercise
device and uses the moment of inertia to provide a high
and variable resistance in both the concentric and
eccentric* movements of the user.
*) concentric muscle action is when the muscle is being
shortened while an eccentric muscle action is when the
muscle is being elongated during action. In some literature,
concentric and eccentric is called positive (shortening)
and negative (lengthening) phase.
How does it work? The kPulley has a drive belt wound around a shaft located
in the back of the device. Different combinations of
flywheels are mounted on the end of the shaft, and you
can mount two flywheels up to 0.070 kgm2respectively
summing up to a total inertia of 0.140 kgm2 in total.
Using hand grips or an ankle cuff attached to the Pulley, the
User should then pull to accelerate the flywheel and then
resists to decelerate the flywheel as the belt winds in the
opposite direction.
Setting up the kPulley The kPulley must be fixed to a Sorinex®rack using the
attachment part and have the drive belt inserted before
being used.
Foot protection The foot protection piece must be assembled after
unpacking the kPulley. This is recommended highly in order
to protect against injury. To fix the protection piece slide
the hooks into the holes in the front and push down firmly.
The Flywheel We offer five different flywheels with inertia: 0.005, 0.010,
0.025, 0.050 and 0.070 kgm2. All flywheels from the kBox4
generation are compatible with all kPulley versions. The
maximum capacity the kPulley can hold at one time is two
flywheels. This allows for a range of inertia between 0.005
and 0.140 kgm2.Do not try to mount more than the
maximum capacity of flywheels.
Experimentation will determine which configuration is
required for your level of training. Mounting or changing
flywheels is done by releasing the Flywheel knob. To do so,
pull the knob on its side, remove the knob, change
flywheel(s) and securing them by pushing the Flywheel
knob back on until it makes a clicking noise.
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