Buttonwillow Raceway Park,
re-solved live.
Buttonwillow, California · 4.46 km · 2.77 mi · clockwise
Open Buttonwillow Raceway Park 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 | 1:40.2 | 158.1 km/h |
| Liter bike | 1:39.1 | 159.9 km/h |
| 650 twin | 1:43.3 | 153.4 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 19
132 km/h · 82 mph in → 113 km/h · 70 mph min
Turn 16
121 km/h · 75 mph in → 100 km/h · 62 mph min
Turn 1
140 km/h · 87 mph in → 117 km/h · 73 mph min