Frequently Asked Questions - iBike Gen III Operating Instructions Manual

APPENDIX 2: FREQUENTLY ASKED QUESTIONS
WHERE DO I FIND THE SERIAL NUMBER FOR MY iBIKE?
The serial number is stored in your iBike's internal memory. You download the serial
number using the iBike software. Consult your iBike software manual for serial number
downloading instructions.
HOW DOES THE iBIKE
The iBike power meter uses a revolutionary approach to power measurement that is based
on Newton's third law:
"For every action there is an equal and opposite reaction"
In bicycling terms, this means that the factors causing the cyclist to expend power during a
bike ride (hill climbing; opposing wind; tire, bearing and other losses; bike acceleration)
are equaled by the power applied through the pedals by the rider.
With the exception of the iBike, all other high performance power meters determine power
by measuring the forces applied by the rider to the pedal. Directly measuring applied pedal
force is an accurate way to derive power, provided the cyclist is willing to accept the
weight, cost, installation, inflexibility, and operational penalties that are characteristic of a
direct-force power meter (DFPM).
In radical contrast, the iBike uses state-of-the-art sensors, along with new and patented
technology, to measure the opposing forces that cause the cyclist to expend power:
opposing wind, hill climbs, bike acceleration, and rolling friction of the bike and tires.
A powerful microprocessor, programmed with proprietary DSP filters and real-time
solutions to the dynamic power equation, processes the output from the iBike sensors
many times per second, computing the total power demands created by hill slope, wind,
etc. And thanks to Newton's third law, measuring the power consumed by hill climbing,
overcoming wind resistance, etc. provides a comprehensive and accurate measurement of
the power generated by the cyclist.
The iBike uses four sensors:
an accelerometer to measure hill slope and bike acceleration/deceleration
o
forces,
a differential pressure sensor to measure wind speed forces,
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an absolute pressure sensor to measure elevation gain, and
o
a wheel pickup to measure bike speed.
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All sensors except the wheel pickup are located within the iBike housing,
making it possible to use the iBike, quickly and easily, on all of your bicycles.
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POWER METER WORK?
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