Formulas

Formulas Definitions: Cad - Cadence (in RPM) Ct - Nr. of teeth in the front chainring Rt - Nr. of teeth in the rear sprocket D - Tire's diameter (in inches) S - Slope (5% = 0.05, 10% = 0.1, etc.) m - Total mass of the set: cyclist+bicycle+cargo [Kg] Bicycle's linear speed: V [Km/h] = Cad [rpm] x D [inches] x Ct/Rt x 0.0048 Power to overcome gravity: Pg [Watts] = m [Kg] x Cad [rpm] x D [inches] x Ct/Rt x Sqrt (S^2/(1+S^2)) x 0.013 Note: These and other formulas are present in the downloadable… More information...