Polaris 2003 Frontier - Manual (Page 49)

47
THE PERFECT FIT
Edge Touring Suspension
Before proceeding with the tuning of your Edge Touring Suspension
(ETS), you should familiarize yourself with the following terms:
Edge Touring Features
Long Travel - Refers to the over 10” of REAL travel that the ETS has
between the rear arm cross-shaft and the slide rail. This is the location
to measure suspension vertical travel. In the Edge chassis, the rear axle
travel is 15.2”.
Biased Couple - Describes the linked relationship between the front
and rear arms of the ETS. When the ETS’s front arm contacts a bump,
the couple forces the rear arm to react instantly. This limits the angle
of incidence between the rail and bump as the rear arm crosses it. the
flatter this angle is kept, the less secondary reaction (kick) the rider
will feel.
Couple Blocks - Are the plastic sliding blocks located at the rear of the
rail. These pieces facilitate the ETS’s actual couple function.
Ride Control Adjuster (RCA) - RCA refers to the adjustable lower
rear shock attachments. Changing this location has two effects on
tuning. Moving the shock forward increases shock speed, resulting in
firmer damping on both compression and rebound. It also increases the
effect of the rear spring by displacing it further.
The adjuster is infinitely variable between those settings. Adjustments
are made quickly and easily.
Threaded Preload Adjuster - The forward facing shock absorber has
a threaded collar on it. The spring has a lock tab that fits into the collar
to allow easy PRELOAD adjustment.
To increase PRELOAD, turn the spring with both hands so that the
collar moves up the shock body.
Indy Select Shock - The forward facing shock absorber has a small
compression damping screw near the bottom of the shock. Turning the
screw clockwise increases the stiffness of the shock up to 300%.