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
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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 148 km/h92 mph | 111 km/h69 mph | 156 km/h97 mph | 141 m463 ft | 82 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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h76 mph | 123 km/h76 mph | 120 km/h74 mph | 111 m364 ft | 213 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
Turn 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h76 mph | 96 km/h60 mph | 142 km/h88 mph | 111 m364 ft | 61 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
Turn 4 — Moraine Sweep
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 223 km/h139 mph | 223 km/h139 mph | 223 km/h139 mph | 0 m0 ft | 14925 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
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 98 km/h61 mph | 64 km/h40 mph | 122 km/h76 mph | 186 m610 ft | 27 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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 118 km/h74 mph | 72 km/h45 mph | 138 km/h86 mph | 60 m197 ft | 34 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
Turn 7
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 158 km/h98 mph | 140 km/h87 mph | 165 km/h103 mph | 12 m39 ft | 129 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
Turn 8
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 132 km/h82 mph | 91 km/h57 mph | 136 km/h85 mph | 96 m315 ft | 55 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
Turn 9 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 157 km/h97 mph | 134 km/h83 mph | 138 km/h86 mph | 15 m49 ft | 118 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
Turn 10 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 138 km/h86 mph | 136 km/h85 mph | 170 km/h105 mph | 36 m118 ft | 123 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
Turn 11 — The Bend
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 118 km/h73 mph | 60 km/h37 mph | 131 km/h81 mph | 75 m246 ft | 24 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
Turn 11B — Kettle Bottoms
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 259 km/h161 mph | 259 km/h161 mph | 259 km/h161 mph | 0 m0 ft | 4082 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
Turn 12 — Canada Corner
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 113 km/h70 mph | 87 km/h54 mph | 134 km/h84 mph | 162 m531 ft | 50 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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 166 km/h103 mph | 140 km/h87 mph | 158 km/h98 mph | 30 m98 ft | 130 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
Turn 14
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 125 km/h78 mph | 91 km/h57 mph | 131 km/h81 mph | 72 m236 ft | 55 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