Racing Line Lab · physics-simulation estimates

Streets of Willow Springs,
re-solved live.

Rosamond, California · 2.51 km · 1.56 mi · clockwise

Open Streets of Willow Springs 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.

COMPUTED LINE · STREETS OF WILLOW SPRINGS SIM
Streets of Willow Springs track map with computed racing line
1.56 MI
Lap
12
Corners
1:31.3
Sim lap · 600

Track outline © OpenStreetMap contributors (ODbL)

Reference simulated laps

Stock bike-class presets · warm sport tires, dry track · simulation estimates

PresetSim lapAvg speed
Supersport 6001:31.396.4 km/h
Liter bike1:31.396.4 km/h
650 twin1:32.095.7 km/h

Where the model brakes hardest

Longest simulated brake zones · Supersport 600 preset · estimates, not measured data

Hard braking · sim

Turn 12

60 m brake zone

64 km/h · 40 mph in → 32 km/h · 20 mph min

Hard braking · sim

Turn 3

42 m brake zone

74 km/h · 46 mph in → 65 km/h · 40 mph min

Hard braking · sim

Turn 9

39 m brake zone

101 km/h · 63 mph in → 72 km/h · 45 mph min

Embed this track

A readonly Lab view — canvas, simulated lap time and a backlink — for your club site or forum post

<iframe src="https://apexlines.app/lab/?track=streets-of-willow&embed=1" width="720" height="560" style="border:0;border-radius:12px;background:#0D0E12" loading="lazy" title="Racing Line Lab — Streets of Willow Springs simulated racing line"></iframe>

The embed loads https://apexlines.app/lab/?track=streets-of-willow&embed=1 — free to use with the attribution left intact.