dᵣ – Rim diameter (mm)
dₜ – Measured tire width (mm)
mm
s – Sealant depth in μm
μm
V = A ⋅ s
Baseline sealant volume
mL
rᵣ = dᵣ / 2
Radius of rim
mm
rₜ = dₜ / 2
Radius of tire
mm
Rₜ = rₜ + rᵣ
Outer radius (rim + tire)
mm
A = 4π² Rₜ ⋅ rₜ
Approx. surface area inside tire/rim
(including tire thickness here)
mm²