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Streets of Willow Springs (Counter-clockwise)

Rosamond, California · 2.51 km · 1.56 mi · counterclockwise

Streets of Willow Springs in Rosamond, California is covered here run counter-clockwise — the clockwise course reversed — with the 14 turns numbered from the Skid Pad (Turn 1) to Turn 14 onto the front straight: 2,509 m (1.56 mi), 8 rights and 6 lefts, 39.8 m (131 ft) of climbing per lap. In the simulation the lap starts at its slowest, a 35 km/h (22 mph) floor in the 8.2 m-radius Skid Pad, and ends at its fastest, leaving Turn 14 at 179 km/h (111 mph); between them sit the Turn 3–4 climb, the 183 m Bowl and a mid-speed return through Turns 8–13. Simulated lap estimates run from 1:18.2 (liter bike) to 1:19.6 (middleweight twin). Every figure here is a physics-simulation estimate, not measured data.

All figures: physics-simulation estimates · generated 2026-10-02 · methodology & assumptions

COMPUTED LINE · STREETS OF WILLOW SPRINGS (COUNTER-CLOCKWISE) SIM
Streets of Willow Springs (Counter-clockwise) track map with computed racing line
1.56 MI
Lap
14
Corners
131 FT
Climb

Track outline © OpenStreetMap contributors (ODbL)

Streets of Willow Springs (Counter-clockwise) — quick facts

Motorcycle track guide · simulation estimates · 2026-10-02

  • Layout: Counter-clockwise, 2,509 m (1.56 mi) modeled length, 14 numbered corners: 8 right, 6 left
  • Simulated lap estimates: 1:18.2 (liter bike), 1:18.4 (supersport 600), 1:19.6 (middleweight twin)
  • Simulated average lap speed: 109.5–111.6 km/h (68–69 mph) depending on class
  • Slowest simulated point: Turn 1 (Skid Pad), 35 km/h (22 mph) at an 8.2 m effective radius
  • Fastest simulated point: the exit of Turn 14 at 179 km/h (111 mph) on the 600 and liter bike
  • Longest simulated brake marker: 213 m (699 ft) before Turn 2 on the liter bike (195 m on the 600, 168 m on the twin)
  • Longest corner: Turn 7 (The Bowl), 183 m of arc; biggest exit gain: Turn 13, 52 to 137 km/h (32 to 85 mph)
  • Biggest modeled elevation changes: −7.6 m (25 ft) through Turn 14, +2.7 m (9 ft) through The Bowl

Turn 1 — Skid Pad

Left48 m arc
EntryMinExitBrake startEff. radiusElev Δ
69 km/h43 mph35 km/h22 mph70 km/h44 mph147 m482 ft8 m27 ft+0.4 m+1 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

The lap opens at its slowest point. The Skid Pad is a 48 m left wrapped around an 8.2 m effective radius, the tightest on the course, rising 0.4 m. It ends the front straight, so the simulation brakes early: 147 m out on the supersport 600, 165 m on the liter bike, 120 m on the twin, arriving at 69 km/h (43 mph) and bottoming at 35 km/h (22 mph) in every class. The exit is 70 km/h (44 mph) — barely above entry — because Turn 2, the second hairpin, turns back the other way straight afterward.

Turn 2

Right36 m arc
EntryMinExitBrake startEff. radiusElev Δ
70 km/h44 mph40 km/h25 mph72 km/h45 mph195 m640 ft11 m35 ft+0.2 m+1 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

Turn 2 is a 36 m right at a 10.8 m effective radius, nearly flat at +0.2 m, and the second-tightest corner on the lap. The simulated entry is 70 km/h (44 mph), the Skid Pad exit speed, and the minimum is 40 km/h (25 mph). The solver's brake marker — 195 m on the supersport 600, 213 m on the liter bike, 168 m on the twin — is the longest on the course and sits back on the front straight: the two hairpins share one braking event. The exit is 72 km/h (45 mph) in every class, heading into the climb.

Turn 3

Right90 m arc
EntryMinExitBrake startEff. radiusElev Δ
82 km/h51 mph81 km/h50 mph106 km/h66 mph0 m0 ft43 m141 ft+1.8 m+6 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

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Turn 4

Right78 m arc
EntryMinExitBrake startEff. radiusElev Δ
103 km/h64 mph63 km/h39 mph108 km/h67 mph18 m59 ft26 m86 ft+2.6 m+9 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 5

Right12 m arc
EntryMinExitBrake startEff. radiusElev Δ
136 km/h84 mph133 km/h83 mph134 km/h84 mph21 m69 ft117 m383 ft+0.2 m+1 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 6

Right15 m arc
EntryMinExitBrake startEff. radiusElev Δ
129 km/h80 mph128 km/h80 mph133 km/h83 mph6 m20 ft108 m356 ft+0.1 m+0 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 7 — The Bowl

Left183 m arc
EntryMinExitBrake startEff. radiusElev Δ
101 km/h63 mph74 km/h46 mph102 km/h64 mph84 m276 ft36 m117 ft+2.7 m+9 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

The Bowl is the longest corner on the course, 183 m of left-hand arc at a 35.8 m effective radius, and with 2.7 m (9 ft) of gain it is also the biggest climb of any corner in the model. The simulation brakes 84 m out on the supersport 600, 87 m on the liter bike and 81 m on the twin, arrives at 101 km/h (63 mph) in every class, and settles to a 74 km/h (46 mph) minimum through the long arc. The exit is 102 km/h (64 mph) on the two larger bikes and 102 km/h (63 mph) on the twin — only a shade above entry, because the corner is long rather than fast.

Turn 8

Right159 m arc
EntryMinExitBrake startEff. radiusElev Δ
99 km/h62 mph99 km/h62 mph134 km/h83 mph51 m167 ft70 m230 ft-2.6 m-9 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 9

Left78 m arc
EntryMinExitBrake startEff. radiusElev Δ
127 km/h79 mph102 km/h63 mph121 km/h75 mph24 m79 ft69 m225 ft-1.0 m-3 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 10

Right72 m arc
EntryMinExitBrake startEff. radiusElev Δ
94 km/h59 mph83 km/h52 mph99 km/h62 mph21 m69 ft46 m150 ft-1.4 m-5 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 11

Left72 m arc
EntryMinExitBrake startEff. radiusElev Δ
93 km/h58 mph65 km/h41 mph104 km/h65 mph9 m30 ft28 m93 ft-1.0 m-3 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 12

Right138 m arc
EntryMinExitBrake startEff. radiusElev Δ
93 km/h58 mph69 km/h43 mph127 km/h79 mph42 m138 ft31 m103 ft+0.5 m+2 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 13

Left126 m arc
EntryMinExitBrake startEff. radiusElev Δ
86 km/h54 mph52 km/h32 mph137 km/h85 mph54 m177 ft18 m59 ft-2.9 m-10 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 14

Left120 m arc
EntryMinExitBrake startEff. radiusElev Δ
135 km/h84 mph135 km/h84 mph179 km/h111 mph0 m0 ft159 m523 ft-7.6 m-25 ft

Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed

This corner's walkthrough is in the all-access pack — along with the other 10 locked corners on this track.

Unlock every corner · $59 lifetime →