Fork Oil Level Calculator
Calculate fork oil volume and air gap for suspension tuning.
Inputs
mm
mm
mm
kg
Results
Oil per Leg
435.7 mL
Total Oil Needed
871.4 mL
Air Gap Volume158.4 mL
Adjusted Oil Level120 mm
Level Adjustment0 mm
Recommended Viscosity10W
How to Use This Calculator
- Enter Fork Tube Inner Diameter, Fork Tube Length, and Oil Level (from top).
- Set Oil Viscosity, 5W, and 10W.
- Adjust 15W, 20W as needed.
- Review Oil per Leg (mL) and Total Oil Needed (mL).
- Use Air Gap Volume (mL) and Adjusted Oil Level (mm) to inform your decision.
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