Adjust real-world parameters (rider size, virtual bike setup, rolling resistance, and gradient) to estimate speed, power, or W/kg using the same classical physics model used by ZwiftGopher.
Inputs
Use negative values for descents.
Typical road values: 0.003–0.006
Uses TT planner bike constants.
Fixed to sea-level density.
Comparison rider
Choose whether the comparison rider should match the primary rider's speed or power.