Road America
Elkhart Lake, Wisconsin · 6.44 km · 4.00 mi · clockwise
Road America in Elkhart Lake, Wisconsin runs 6,437 m (4.00 mi) clockwise through 12 numbered corners, with the surface ranging between 269 m and 324 m elevation — roughly 54 m (177 ft) of vertical spread and 71 m of cumulative gain per lap. The simulated speed profile splits the lap cleanly: the fast half lives in the middle sector, where the model carries a 128 km/h (80 mph) minimum through the Kink, 137 km/h (85 mph) through downhill Turn 6, and 109 km/h (68 mph) through Turn 11. The slow points cluster earlier and later — Turn 4 is the tightest at a 77 km/h (48 mph) simulated minimum, with Hurry Downs, Turn 3, and the Turn 2/10/12 group all in the 77–98 km/h (48–61 mph) band. Simulated lap times span 2:36.6 for the liter-bike model to 2:43.0 for the middleweight twin. All figures on this page are physics-simulation estimates, not measured data.
All figures: physics-simulation estimates · generated 2026-07-08 · methodology & assumptions
Track outline © OpenStreetMap contributors (ODbL)
Road America — quick facts
Motorcycle track guide · simulation estimates · 2026-07-08
- Length: 6,437 m (4.00 mi), 12 corners, run clockwise
- Elevation: 269–324 m above sea level; 71 m cumulative gain per lap
- Fastest simulated corner: Turn 6, 137 km/h (85 mph) minimum
- Slowest simulated corner: Turn 4, 77 km/h (48 mph) minimum
- Longest corner: the Carousel — 318 m of arc dropping 10.6 m
- Simulated lap estimates: 2:36.6 (liter bike), 2:37.9 (supersport 600), 2:43.0 (middleweight twin)
- Simulated average speed: 146–148 km/h (91–92 mph) for the sport classes
Turn 1
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 155 km/h96 mph | 113 km/h70 mph | 135 km/h84 mph | 42 m138 ft | 85 m278 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
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 135 km/h84 mph | 90 km/h56 mph | 156 km/h97 mph | 96 m315 ft | 54 m176 ft | -2.0 m-7 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 tightens things relative to Turn 1: a right-hander of 53.7 m effective radius over 177 m, falling 2 m. The simulated entry is 135 km/h (84 mph) with braking starting about 96 m out for the supersport-600 (117 m for the liter bike, 69 m for the twin). The modeled minimum is 90 km/h (56 mph), and the corner gains speed end to end — the simulation exits at 156 km/h (97 mph), well above its entry, the gentle downhill grade helping the drive phase. This is a physics-simulation estimate computed from track geometry.
Turn 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 118 km/h73 mph | 77 km/h48 mph | 126 km/h78 mph | 75 m246 ft | 39 m129 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 4
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 143 km/h89 mph | 76 km/h48 mph | 105 km/h65 mph | 42 m138 ft | 38 m126 ft | +1.7 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
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 102 km/h64 mph | 102 km/h64 mph | 140 km/h87 mph | 156 m512 ft | 88 m288 ft | -0.6 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
Geometrically the opposite of Turn 4 in the computed data: a more open 87.9 m effective radius, a much shorter 45 m length, a gentle 0.6 m descent — and the simulation produces very different numbers. Entry at an estimated 102 km/h (63 mph), a modeled minimum of the same 102 km/h (63 mph), exit up at 140 km/h (87 mph), with braking beginning about 156 m out on the supersport-600 (165 m liter bike, 138 m twin). Taken together, Turns 4 and 5 form a repeated left-left rhythm section where the model's speed floor never changes between classes. These numbers are simulation estimates, not measurements.
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 155 km/h96 mph | 137 km/h85 mph | 160 km/h100 mph | 30 m98 ft | 124 m405 ft | -5.2 m-17 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 — Hurry Downs
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 112 km/h69 mph | 87 km/h54 mph | 132 km/h82 mph | 81 m266 ft | 50 m163 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
Hurry Downs lives up to its name in the elevation data — a 120 m left with a 49.8 m effective radius that continues the descent, dropping another 1.6 m. The simulation brakes roughly 81 m before turn-in (90 m on the liter bike, 66 m on the twin), enters at an estimated 112 km/h (70 mph), and reaches an 87 km/h (54 mph) minimum, among the slower points on the lap. Notably, the modeled exit of 132 km/h (82 mph) is well above the entry, since the downhill run aids acceleration off the apex. All speeds are physics-simulation estimates.
Turn 8 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 117 km/h73 mph | 109 km/h68 mph | 148 km/h92 mph | 3 m10 ft | 78 m257 ft | -10.6 m-35 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 — Kink
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 141 km/h88 mph | 128 km/h79 mph | 158 km/h98 mph | 54 m177 ft | 108 m353 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
Turn 10 — Canada Corner
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 115 km/h71 mph | 78 km/h48 mph | 154 km/h95 mph | 51 m167 ft | 40 m131 ft | +5.3 m+17 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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 131 km/h81 mph | 109 km/h68 mph | 137 km/h85 mph | 57 m187 ft | 79 m260 ft | +8.0 m+26 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
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h77 mph | 98 km/h61 mph | 124 km/h77 mph | 75 m246 ft | 63 m207 ft | +1.2 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