Do I enter one spacer or both?
Enter the thickness of a single spacer. The calculator assumes the same spacer on the left and right.
Estimate how much wider the ATV sits after adding a spacer of a given thickness to each side.
Values update after you calculate. Empty or invalid inputs will not invent a number.
Enter the values and choose Calculate to see estimates.
Each spacer moves one wheel out. Total track-width gain is twice the spacer thickness.
New track width = current track width + (spacer thickness × 2).
These results are estimates for planning only. They are not OEM specifications, safety certifications, or professional mechanical, legal, or financial advice.
Enter the thickness of a single spacer. The calculator assumes the same spacer on the left and right.
Only if they are made for the hub, use the correct studs, and leave enough thread engagement. This page only does the width math.
Functionally they move the wheel out like a more negative offset, without changing the wheel's stamped offset.
Wheel Offset Calculator
Compare ATV wheel offset changes and estimate the new track width.
Tire Size Calculator
Compare stock and new ATV tire diameter, circumference, and the effect on speedometer readings.
Ground Clearance Calculator
Estimate ATV ground-clearance change after swapping to a different tire diameter.
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