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 136 km/h (84 mph) minimum through the Kink, 127 km/h (79 mph) through the long downhill Carousel, and 122 km/h (76 mph) through Turn 11. The slow points cluster earlier and later — Turn 3 is the tightest at a 69 km/h (43 mph) simulated minimum, with Hurry Downs, Turns 4–5, and the Turn 2/10/12 group all in the 82–88 km/h (51–55 mph) band. Simulated lap times span 2:14.2 for the liter-bike model to 2:27.5 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: the Kink, 136 km/h (84 mph) minimum
- Slowest simulated corner: Turn 3, 69 km/h (43 mph) minimum
- Longest corner: the Carousel — 303 m of arc dropping 10.3 m
- Simulated lap estimates: 2:14.2 (liter bike), 2:19.0 (supersport 600), 2:27.5 (middleweight twin)
- Simulated average speed: 167–173 km/h (104–107 mph) for the sport classes
Turn 1
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 144 km/h89 mph | 108 km/h67 mph | 137 km/h85 mph | 147 m482 ft | 76 m251 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
A 141 m right-hander with a 76.5 m effective radius and a slight 1.2 m drop through the arc. In the simulation the supersport-600 model begins braking about 147 m before turn-in, arrives at 144 km/h (89 mph), and bottoms out at an estimated 108 km/h (67 mph) before rolling back to 137 km/h (85 mph) at exit. The braking zone is the main class differentiator here: the liter-bike model, arriving off a longer run, starts its braking roughly 213 m out, while the middleweight twin needs only about 93 m. Minimum speed is identical across all three classes — the corner radius, not power, sets the floor. Estimates only; see the page assumptions.
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 132 km/h82 mph | 88 km/h55 mph | 132 km/h82 mph | 102 m335 ft | 51 m168 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 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 117 km/h73 mph | 69 km/h43 mph | 115 km/h72 mph | 177 m581 ft | 31 m102 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
The tightest point on the circuit in the model's speed trace. Turn 3 is a left with a 31 m effective radius — less than half that of Turn 2 — covering 114 m on essentially flat ground (0.2 m of drop). The simulation shows a long braking zone: roughly 177 m for the supersport-600 and a substantial 246 m for the liter bike, reflecting how much speed the straight beforehand builds. Entry is estimated at 117 km/h (73 mph), the minimum at just 69 km/h (43 mph) — the lowest simulated speed anywhere on the lap — and the exit at 115 km/h (72 mph). All values are simulation estimates under the stated assumptions.
Turn 4
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 125 km/h78 mph | 83 km/h52 mph | 125 km/h78 mph | 54 m177 ft | 46 m150 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
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 125 km/h78 mph | 83 km/h52 mph | 125 km/h78 mph | 54 m177 ft | 46 m150 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
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 147 km/h91 mph | 115 km/h72 mph | 143 km/h89 mph | 33 m108 ft | 88 m287 ft | -5.1 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 |
|---|---|---|---|---|---|
| 123 km/h76 mph | 82 km/h51 mph | 124 km/h77 mph | 102 m335 ft | 44 m144 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 8 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 142 km/h88 mph | 127 km/h79 mph | 156 km/h97 mph | 15 m49 ft | 106 m349 ft | -10.3 m-34 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 |
|---|---|---|---|---|---|
| 163 km/h101 mph | 136 km/h84 mph | 154 km/h96 mph | 84 m276 ft | 121 m398 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
Turn 10 — Canada Corner
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 128 km/h80 mph | 87 km/h54 mph | 125 km/h78 mph | 138 m453 ft | 50 m165 ft | +4.1 m+13 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 reverses the elevation story: a 129 m right at 50.3 m effective radius that climbs 4.1 m. The simulation shows one of the longer braking efforts on the lap — approximately 138 m for the supersport-600 and 174 m for the liter bike — into an estimated 128 km/h (80 mph) entry. The modeled minimum is 87 km/h (54 mph), placing it among the slow-corner group with Turns 2 and 12, and the exit is estimated at 125 km/h (78 mph), the uphill grade taxing the drive phase slightly. Per the model's assumptions, the climbing grade also adds normal load under braking. Simulation estimates only.
Turn 11
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 149 km/h93 mph | 122 km/h76 mph | 146 km/h91 mph | 36 m118 ft | 99 m324 ft | +9.3 m+31 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 |
|---|---|---|---|---|---|
| 143 km/h89 mph | 87 km/h54 mph | 128 km/h79 mph | 63 m207 ft | 50 m164 ft | +1.1 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