Specifications

Z8 Bike Owner’s Guide
HRC Ultra Overview
HEART RATE CONTROL
64
HEART RATE CONTROL
As mentioned in the Constant HRC
section, as you tire in the last third of
your workout, your heart rate has a
tendency to rise, which Constant HRC
addresses by reducing workload.
However, exercisers who are really
serious and in very good condition
always let their heart rates rise during
the last third of their workouts, usually
to very high levels. The HRC Ultra
workouts are designed to simulate this
kind of high-intensity workout.
WHY USE
HRC ULTRA
WORKOUTS?
Do not attempt these
workouts unless you
are certain you are in
good medical and
physical condition.
Failure to observe this
warning may result in
shortness of breath,
dizziness, or death.