Thunderhill Full Course,
re-solved live.
Willows, California · 7.35 km · 4.57 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 | 3:36.5 | 120.5 km/h |
| Liter bike | 3:35.9 | 120.8 km/h |
| 650 twin | 3:40.2 | 118.4 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 29
132 km/h · 82 mph in → 132 km/h · 82 mph min
Turn 6
78 km/h · 48 mph in → 78 km/h · 48 mph min
Turn 20
144 km/h · 90 mph in → 116 km/h · 72 mph min