Polaris Outlaw 525 IRS Owner's Manual page 178

Rear Suspension
The rear suspension spring preload, shock rebound
damping and shock compression damping may be
adjusted to suit different riding conditions and operator
weight.
Spring Preload
1. Raise and safely support the rear of the vehicle off
the ground to allow the suspension to fully extend.
2. Turn the adjusting ring clockwise (1) to increase
preload. Turn the ring counter-clockwise (2) to
decrease preload.
Maintenance
Adjusting
Ring
1 2
175