Dynamic Gear Chart
Visualizing the biomechanical cost of gear selection under real-world track conditions.
| Ratio | 55 | 56 | 57 | 58 | 59 | 60 |
|---|---|---|---|---|---|---|
| 13 | ||||||
| 14 | ||||||
| 15 | ||||||
| 16 |
Gearing
Chainring tooth counts. Enter multiple values separated by commas or spaces.
Cassette/cog tooth counts. Enter multiple values separated by commas or spaces.
Air (ρ): 1.184 kg/m³
Transmission Physics
Development (Rollout)
Precise calculation of distance traveled per crank revolution. Critical for junior rollout compliance and event-specific efficiency normalization.
Effective Air Density
Atmospheric normalization. We analyze local air density (ρ) to quantify the difference in perceived load across varying altitudes and temperatures.
Performance Metrics
Launch Torque
Quantifying the mechanical requirement for 0.5G launch acceleration. Balancing standing start explosivity with high-end cadence stability.
Cadence Stability
Identifying the gear ratio that maintains the optimal metabolic window at target velocity.
Premium solvers
Pair gearing with indoor CdA testing
Calibrate CdA from power rides, plan courses with your physics, or test velodrome setups in Track Lab.