Polaris 120 Owner's Manual For Maintenance And Safety page 77

ADULT SECTION
Maintenance
Slider Replacement
The 120 snowmobile uses
XTRA Lite style slider.
When any area of the slider is
worn to 7/16" (1.1 cm), it
should be replaced. This will
7/16" (1.1 cm)
save wear on other vital
components.
XTRA Lite
The slide rail is designed to
operate in conditions with
adequate snow cover to
provide sufficient lubrication. Excessive wear may be due to improper
alignment, improper track adjustment or machine operation on surfaces
without snow. Take the machine to your dealer for slider replacement.
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