Compute the 15% droop tire pressure based on wheel load and tire size

Source: R/droop_pressure.R

Original research used rims with internal widths of ~19mm. Today's wider rims can add increase the volume of a tire by 33%.

droop_pressure_psi(weight_lbs, tire_size_mm)

Arguments

weight_lbs

is the load on the bicycle wheel and typically 40 - 60 percent of the total weight of the rider, bike and carried items.
tire_size_mm

is the nominal size of the tire from the casing label or directly measured diameter.

Value

pressure, psi

Details

The emperical, imperial centric formula is from the BikeTinker