Buttonwillow Raceway Park,
re-solved live.
Buttonwillow, California · 4.95 km · 3.08 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 | 2:05.5 | 142.5 km/h |
| Liter bike | 2:03.0 | 145.4 km/h |
| 650 twin | 2:10.3 | 137.2 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 1
120 km/h · 75 mph in → 74 km/h · 46 mph min
Turn 9
94 km/h · 59 mph in → 49 km/h · 30 mph min
Turn 3
133 km/h · 83 mph in → 90 km/h · 56 mph min