E‑Bike Weight vs Speed — Estimator

Bike weight (kg) Rider weight (kg) Motor power (W) Assist efficiency (%)

Incline (%) CdA (m²) Rolling resistance (Cr) Air density (kg/m³)

Estimate top speed Show comparison table Outputs are estimates — real-world results vary.

Formula used: power = Cr·m·g·v + 0.5·ρ·CdA·v³ + m·g·sin(atan(incline/100))·v. Solver finds max v where required power ≤ available motor power at wheel.