Rubber Track Fitment Guide
Before ordering replacement rubber tracks:
Find the track markings
Inspect the inside edge or sidewall of the existing track for a molded size such as:
450 × 86 × 55
450
= track width in millimeters
86
= pitch in millimeters
55
= total number of links or drive lugs
Measure the track width
Measure straight across the complete outside width of the track. Record the measurement in millimeters.
Measure the pitch
Measure from the
center of one inner drive lug to the center of the next
. Do not measure only the empty space between the lugs. Measuring across several pitches and dividing by the number of spaces can improve accuracy on a worn track.
Count the links
Mark one drive lug with chalk, then count every drive lug around the entire track until you return to the marked lug. Do not estimate.
Confirm the guide and roller configuration
Tracks with the same three-number size may have different guide widths, guide heights, or roller configurations. The incorrect guide system can cause poor alignment, de-tracking, sprocket skipping, or premature undercarriage wear.
Provide the machine information
Confirm the machine’s:
Manufacturer
Exact model
Serial number
Current track size
Track guide or roller style
Any letters following the size, such as
C, N, W or K
Photos of the molded track markings
Photos of the drive lugs, rollers, sprocket and full undercarriageImportant Fitment
Notice
Machine model alone does not guarantee rubber-track fitment. Manufacturers may use different undercarriage or track configurations within the same model series. Track size and configuration must be confirmed before ordering.
Track fitment is not guaranteed. Size selection is the buyer’s responsibility.
When markings are missing or illegible, GRIT may request measurements, machine serial information and additional photographs before recommending an available option.