Polaris IQ Turbo LX Owner's Manual page 58

IQ & Switchback Rear Suspension Adjustments
Initial Spring Preload Setting (Sag Method)
To determine sag, commonly referred to as ride-in, subtract measure-
ment Y from X (sag=X-Y). If the measured sag is incorrect, adjust the
FRA position and/or rear torsion spring preload.
Suspension Recommended Sag
IQ 121
Switchback
136
NOTE:
This is only an initial setup, and final spring preload may vary based on
rider preference and riding conditions.
4-5 inches (10-13 cm)
4-5 inches (10-13 cm)
THE PERFECT FIT
Adjustment
Torsion Spring
Preload
Torsion Spring
Preload
See
Page
56
56
55