What is static sag versus rider sag?
Static sag is how much the suspension compresses under the ATV alone. Rider sag adds the rider in riding gear.
ATV Calculator
ATV Suspension Sag Calculator
Turn tape-measure sag numbers into percentages of travel so you can compare your ATV setup with common starting targets.
Results
Values update after you calculate. Empty or invalid inputs will not invent a number.
Enter the values and choose Calculate to see estimates.
How it works
Enter total suspension travel, sag with the ATV's own weight (static sag), and sag with the rider aboard. Each sag is divided by travel.
Sag % = sag ÷ travel × 100. Many ATV setups start near 30–33% rider sag.
These results are estimates for planning only. They are not OEM specifications, safety certifications, or professional mechanical, legal, or financial advice.
Suspension Sag Calculator FAQs
Should sag be the same front and rear?
Not always. Measure each end separately and enter one end at a time.
What if rider sag is over 40%?
The spring may be too soft or preload too low. This page does not pick spring rates; it only reports percentages.
Related ATV calculators
Lift Height Calculator
Estimate ATV ride-height change from a lift kit and optional tire-diameter change.
Weight Calculator
Add ATV, rider, passenger, cargo, and accessory weights to estimate total operating weight.
Ground Clearance Calculator
Estimate ATV ground-clearance change after swapping to a different tire diameter.
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