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Road America

Elkhart Lake, Wisconsin · 6.50 km · 4.04 mi · clockwise

Road America in Elkhart Lake, Wisconsin is modeled here on the Motorcycle Course — the layout with the Bend chicane at Turn 11 that bike track days and MotoAmerica run: 6,502 m (4.04 mi) clockwise, 14 numbered turns plus Turn 11B. Moraine Sweep (Turn 4) and Kettle Bottoms (Turn 11B) are flat-out kinks the reference line runs straight through. The simulated speed profile is fastest through Thunder Valley, Turn 7 and the Carousel, where the minimums sit at 134–140 km/h (83–87 mph), and slowest at the Bend, 60 km/h (37 mph). Simulated lap times run from 2:16.0 for the liter bike to 2:29.1 for the middleweight twin. Every figure on this page is a physics-simulation estimate computed from track geometry, not measured data.

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

COMPUTED LINE · ROAD AMERICA SIM
Road America track map with computed racing line
4.04 MI
Lap
15
Corners
241 FT
Climb

Track outline © OpenStreetMap contributors (ODbL)

Road America — quick facts

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

  • Layout: Motorcycle Course (Bend chicane), 6,502 m (4.04 mi), run clockwise
  • 15 corner entries: turns 1–14 plus 11B; two flat-out kinks (Turn 4 Moraine Sweep, Turn 11B Kettle Bottoms)
  • Fastest simulated cornering minimum: Turn 13, Thunder Valley — 140 km/h (87 mph), with Turn 7 a fraction behind
  • Slowest simulated corner: Turn 11, the Bend — 60 km/h (37 mph) at a 23.5 m effective radius
  • Longest corner: Turn 10, the second half of the Carousel — 264 m of arc dropping 8.7 m (29 ft), the biggest single-corner descent
  • Biggest climb: Turn 13, Thunder Valley — 8.6 m (28 ft) of gain over 138 m
  • Longest simulated brake zone: 252 m into Turn 5 on the liter bike
  • Simulated lap estimates: 2:16.0 (liter bike), 2:20.9 (supersport 600), 2:29.1 (middleweight twin); average 156–171 km/h (97–106 mph)

Turn 1

Right159 m arc
EntryMinExitBrake startEff. radiusElev Δ
148 km/h92 mph111 km/h69 mph156 km/h97 mph141 m463 ft82 m268 ft-1.5 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

The lap opens with a 159 m right-hander at an 81.6 m effective radius, falling 1.5 m through the arc. The braking zone off the front straight is the main class differentiator: the supersport-600 model starts braking 141 m before turn-in, the liter bike 210 m, the middleweight twin 90 m. All three arrive at 148 km/h (92 mph) and share a 111 km/h (69 mph) minimum — the radius, not power, sets the floor. Exit is 156 km/h (97 mph) for the two sport classes and 151 km/h (94 mph) for the twin.

Turn 2

Right3 m arc
EntryMinExitBrake startEff. radiusElev Δ
123 km/h76 mph123 km/h76 mph120 km/h74 mph111 m364 ft213 m698 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 11 locked corners on this track.

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Turn 3

Right144 m arc
EntryMinExitBrake startEff. radiusElev Δ
123 km/h76 mph96 km/h60 mph142 km/h88 mph111 m364 ft61 m201 ft-1.6 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 4 — Moraine Sweep

Right0 m arc
EntryMinExitBrake startEff. radiusElev Δ
223 km/h139 mph223 km/h139 mph223 km/h139 mph0 m0 ft14925 m48968 ft+0.0 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 5

Left105 m arc
EntryMinExitBrake startEff. radiusElev Δ
98 km/h61 mph64 km/h40 mph122 km/h76 mph186 m610 ft27 m90 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

The second-slowest point on the lap: a 105 m left at a 27.3 m effective radius, rising 0.5 m. The braking zone that precedes it is the longest in the data — 186 m on the supersport-600, 252 m on the liter bike, 135 m on the twin — because the Moraine Sweep run arrives with so much speed to dispose of. Entry is 98 km/h (61 mph), the minimum 64 km/h (40 mph) across all three classes, and the exit 122 km/h (76 mph) for the sport bikes and 118 km/h (73 mph) for the twin.

Turn 6

Left141 m arc
EntryMinExitBrake startEff. radiusElev Δ
118 km/h74 mph72 km/h45 mph138 km/h86 mph60 m197 ft34 m113 ft+0.3 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 7

Right177 m arc
EntryMinExitBrake startEff. radiusElev Δ
158 km/h98 mph140 km/h87 mph165 km/h103 mph12 m39 ft129 m422 ft-5.9 m-19 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 8

Left150 m arc
EntryMinExitBrake startEff. radiusElev Δ
132 km/h82 mph91 km/h57 mph136 km/h85 mph96 m315 ft55 m180 ft-1.3 m-4 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 9 — Carousel

Right240 m arc
EntryMinExitBrake startEff. radiusElev Δ
157 km/h97 mph134 km/h83 mph138 km/h86 mph15 m49 ft118 m389 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 10 — Carousel

Right264 m arc
EntryMinExitBrake startEff. radiusElev Δ
138 km/h86 mph136 km/h85 mph170 km/h105 mph36 m118 ft123 m402 ft-8.7 m-29 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 11 — The Bend

Left189 m arc
EntryMinExitBrake startEff. radiusElev Δ
118 km/h73 mph60 km/h37 mph131 km/h81 mph75 m246 ft24 m77 ft-3.8 m-12 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 11B — Kettle Bottoms

Left0 m arc
EntryMinExitBrake startEff. radiusElev Δ
259 km/h161 mph259 km/h161 mph259 km/h161 mph0 m0 ft4082 m13391 ft+0.0 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 12 — Canada Corner

Right132 m arc
EntryMinExitBrake startEff. radiusElev Δ
113 km/h70 mph87 km/h54 mph134 km/h84 mph162 m531 ft50 m165 ft+4.4 m+14 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

Canada Corner is a 132 m right at a 50.2 m effective radius that climbs 4.4 m — the first uphill corner of any size since Turn 5. The simulation brakes 162 m before turn-in on the supersport-600, 189 m on the liter bike and 111 m on the twin — the second-longest zone on the lap — arriving at 113 km/h (70 mph) and bottoming out at 87 km/h (54 mph). Exit is 134 km/h (84 mph) for the sport bikes and 131 km/h (81 mph) for the twin, heading into the climb through Thunder Valley.

Turn 13 — Thunder Valley

Left138 m arc
EntryMinExitBrake startEff. radiusElev Δ
166 km/h103 mph140 km/h87 mph158 km/h98 mph30 m98 ft130 m427 ft+8.6 m+28 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 14

Right147 m arc
EntryMinExitBrake startEff. radiusElev Δ
125 km/h78 mph91 km/h57 mph131 km/h81 mph72 m236 ft55 m181 ft+0.8 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 11 locked corners on this track.

Unlock every corner · $59 lifetime →