Willow Springs (Big Willow),
re-solved live.
Rosamond, California · 3.94 km · 2.45 mi · clockwise
Open Willow Springs (Big Willow) 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 | 1:29.6 | 158.4 km/h |
| Liter bike | 1:28.0 | 161.3 km/h |
| 650 twin | 1:32.6 | 153.3 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 3
104 km/h · 65 mph in → 100 km/h · 62 mph min
Turn 1
141 km/h · 87 mph in → 115 km/h · 72 mph min
Turn 5
124 km/h · 77 mph in → 91 km/h · 56 mph min