Buttonwillow Raceway Park,
re-solved live.
Buttonwillow, California · 4.93 km · 3.06 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 | 1:59.9 | 147.1 km/h |
| Liter bike | 1:57.3 | 150.3 km/h |
| 650 twin | 2:04.8 | 141.2 km/h |
Where the model brakes hardest
Longest simulated brake zones · Supersport 600 preset · estimates, not measured data
Turn 1
115 km/h · 72 mph in → 69 km/h · 43 mph min
Turn 3
138 km/h · 86 mph in → 111 km/h · 69 mph min
Turn 13
181 km/h · 113 mph in → 138 km/h · 86 mph min