Copyright Velocomp LLP 2005-2013
21
Is
all
wobbling “bad”?
Of course not! For example, in a sprint, side-to-side wobbling is extreme—
producing huge amounts of short-term power, but at reduced economy, due
to wobbling.
And even when not sprinting, some amount of wobbling is both natural and
normal.
But the best cyclists—the ones with good bike fit and trained
pedaling style—have visibly less wobbling
.
These cyclists have
distinctively smoother—and more economical—riding styles.
Whether driving a car, or pedaling a bike, economy is a good thing!
Excessive wobbling, and what causes it
M
ost cyclists wobble far more than they need to.
Excessive wobbling can be
a result of improper bike fit, frame size/type, and pedaling style—either
singly, or most often, in combination.
PowerStroke compares your actual wobbling to the smooth motion
of top cyclists, showing you if your wobbling is excessive.
By reducing excessive wobbling, the cyclist reduces wasted
motion/watts/time,
and becomes a better, more economical cyclist.
The PowerStroke Crank Plot: Your actual motion vs “Ideal” motion
Top cyclists have had their pedal and power strokes measured in the
laboratory. As they turn the crank and apply power, these cyclists produce
smooth, optimum acceleration and deceleration of the bike.
The PowerStroke Ideal Motion Crank Plot displays, as a green oval, the
ideal, the lab-measured pedal stroke. The same plot overlays your actual
front-to-back motion. Deviations of your motion from the ideal are shaded
in grey.
