Liberty Products, Inc. recommends that tunnel
and/or heat exchanger protection be installed in
all snowmobiles when traction products are
utilized. Even if your snowmobile is
equipped with factory tunnel protection we
suggest that you check for adequate clearance of
traction products before you ride. Riding
without performing a clearance check can result
in serious damage to your snowmobile. Stud
quantities listed are based on standard stud
patterns for 121” tracks that have 48 ribs, you
will have to adjust the stud quantity for
shorter or longer tracks. (Divide track length
by 2.52” then multiply by desired number of
studs per lug to determine quantity of studs
required-example-136”/2.52x2=108)