Content Source: 2021 550 Indy 144 Owner’s Manual (9931273 R01) > The Perfect Fit Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

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Traction Products

Carbide Skags

A skag is a replaceable bar attached to the underside of the ski to assist in turning the snowmobile and to prevent ski wear caused by contact with roads and other bare terrain. Use carbide skags with studded tracks to help maintain proper vehicle steering and control. See Ski Skags.
If your snowmobile has carbide skags, it may be necessary to add track studs to maintain proper vehicle control. Maintain a proper balance between the number of studs and the length of carbide on the skags (the more studs you use, the longer the carbide on the skags should be). See your dealer’s track studding chart.
Inspect skags frequently. Worn skags may reduce steering and braking control on hard-packed snow and ice. Replace worn skags to maintain proper balance and vehicle control.
WARNING
Loss of control can result in serious personal injury or death. Proper balance of traction products on the skis and track must be maintained to obtain proper vehicle control on hard-packed snow or ice. See your dealer for assistance.

Wear Strips

To avoid excessive tunnel wear, tunnel wear strips must be installed whenever track studding is used.
Install the appropriate wear strip kit. See your dealer.
Wear strips are designed for a specific stud length. See your dealer’s studding chart for recommended traction accessories.
NOTICE
Whenever wear strips are relocated, be sure there’s adequate stud clearance to the tunnel. Lack of clearance may result in damage to tunnel.

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