Census of 321 Tires — Real vs Nominal Width (BikeLab PSI dataset)

Compilation of BicycleRollingResistance's public census of 321 road and gravel tires (real vs nominal width), corrected for internal rim width. On this data the constant-deflection model (Berto 15% criterion) of the BikeLab PSI Calculator is built, cross-validated against SILCA and Rene Herse (9/12 wheels within ±10%). Uncertainty via Latin Hypercube (10,000 samples) and Sobol indices. BikeLab's original contribution is the model, the calibration and the uncertainty analysis; the widths come from BicycleRollingResistance's public census (Jarno Bierman, bicyclerollingresistance.com), used with attribution. The correction tables, calibrated coefficients and sampling code are shared under agreement.