Thunderhill Full Course,
re-solved live.
Willows, California · 7.34 km · 4.56 mi · counterclockwise
Open Thunderhill Full Course in the Racing Line Lab and the browser re-solves the speed profile on the computed racing line as you change bike class, mass, power and grip. Every figure below is a simulation estimate on OpenStreetMap-derived geometry — not a measured lap.
The map and these reference laps are free in the Lab; live solving on this track unlocks with the $29 lifetime all-tracks pass.
Track outline © OpenStreetMap contributors (ODbL)
Reference simulated laps
Stock bike-class presets · warm sport tires, dry track · simulation estimates
| Preset | Sim lap | Avg speed |
|---|---|---|
| Supersport 600 | 3:25.0 | 128.8 km/h |
| Liter bike | 3:23.3 | 129.9 km/h |
| 650 twin | 3:30.0 | 125.7 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 28
122 km/h · 76 mph in → 74 km/h · 46 mph min
Turn 29
122 km/h · 76 mph in → 74 km/h · 46 mph min
Turn 1
152 km/h · 95 mph in → 115 km/h · 71 mph min