Chuckwalla Valley Raceway (Counter-clockwise)
Desert Center, California · 4.32 km · 2.68 mi · counterclockwise
Chuckwalla Valley Raceway in Desert Center, California is modeled here in its Counter-clockwise layout: 4,319 m (2.68 mi) of centerline run counter-clockwise through the same 17 numbered corners as the clockwise course. The card keeps the clockwise numbers, so the lap runs Turn 17 down to Turn 1 — ten lefts and seven rights. The circuit is nearly flat, with 10.3 m (34 ft) of total climb. Every speed, distance and lap time on this page is a physics-simulation estimate from track geometry, not measured data. The reference line's slowest point is Turn 9 at 75 km/h (47 mph); its fastest is shared by the Turn 8 exit and the Turn 1 kink at about 172 km/h (107 mph). Simulated laps: 1:48.9 liter bike, 1:49.7 supersport 600, 1:52.3 middleweight twin.
All figures: physics-simulation estimates · generated 2026-10-02 · methodology & assumptions
Track outline © OpenStreetMap contributors (ODbL)
Chuckwalla Valley Raceway (Counter-clockwise) — quick facts
Motorcycle track guide · simulation estimates · 2026-10-02
- Layout: Counter-clockwise, 4,319 m (2.68 mi) modeled length; clockwise turn numbers kept, so the lap runs Turn 17 to Turn 1
- 17 corners on the card: 10 left, 7 right in this direction
- Tightest corner: Turn 9, 37.2 m effective radius, 75 km/h (47 mph) simulated minimum
- Largest radius: the Turn 1 kink at 225.1 m, taken without braking at 159–160 km/h (99–100 mph) on the 600 and liter bike
- Highest simulated exits: Turn 8 and the Turn 1 kink, both about 172 km/h (107 mph) on the 600 and liter bike
- Longest simulated brake zone: 150 m before Turn 10 on the liter bike (117 m on the 600, 84 m on the twin)
- Longest corner: Turn 13, The Bowl, 264 m of arc
- Simulated lap times: 1:48.9 (liter bike), 1:49.7 (supersport 600), 1:52.3 (twin 650); average 136.8–141.0 km/h (85–88 mph)
Turn 17
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 110 km/h69 mph | 110 km/h69 mph | 107 km/h66 mph | 54 m177 ft | 179 m586 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 16
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 110 km/h69 mph | 88 km/h55 mph | 149 km/h93 mph | 54 m177 ft | 51 m167 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 15
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 154 km/h95 mph | 117 km/h73 mph | 141 km/h88 mph | 39 m128 ft | 90 m297 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
Turn 14
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 154 km/h96 mph | 121 km/h75 mph | 161 km/h100 mph | 12 m39 ft | 96 m315 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
Turn 13 — The Bowl
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 142 km/h88 mph | 104 km/h64 mph | 133 km/h83 mph | 63 m207 ft | 71 m233 ft | -0.7 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 Bowl is the longest corner on the card: 264 m of left-hand arc at a 71 m effective radius, dropping 0.7 m across its length. The simulated entry is 142 km/h (88 mph) in every class, with brake markers 63 m, 72 m and 45 m out on the supersport 600, liter bike and twin respectively. Minimum speed is 104 km/h (64 mph) for all classes, held through the long middle of the arc. The exit builds to 133 km/h (83 mph) in every class — radius, not power, sets the pace here, which is why the twin matches the larger bikes.
Turn 12
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 140 km/h87 mph | 109 km/h68 mph | 130 km/h80 mph | 30 m98 ft | 78 m256 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
Turn 11
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 145 km/h90 mph | 125 km/h78 mph | 149 km/h93 mph | 6 m20 ft | 103 m337 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
Turn 10
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 121 km/h75 mph | 93 km/h58 mph | 92 km/h57 mph | 117 m384 ft | 57 m187 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 10 is a 156 m left at a 56.9 m effective radius with a 0.8 m (3 ft) rise, and it carries the longest brake zone on the lap: 117 m on the supersport 600, 150 m on the liter bike and 84 m on the twin, from a 121 km/h (75 mph) entry to a 93 km/h (58 mph) minimum. The exit reads 92 km/h (57 mph), fractionally below the minimum — the line is still slowing as it leaves the arc because Turn 9, the tightest corner on the circuit, follows immediately. Together 10 and 9 form the slowest section of the simulated lap.
Turn 9
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 92 km/h57 mph | 75 km/h47 mph | 103 km/h64 mph | 24 m79 ft | 37 m122 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
Turn 8
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 132 km/h82 mph | 132 km/h82 mph | 172 km/h107 mph | 0 m0 ft | 120 m393 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 7
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 128 km/h79 mph | 100 km/h62 mph | 114 km/h71 mph | 90 m295 ft | 66 m218 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 7 is a 159 m left at a 66.5 m effective radius climbing 0.8 m (3 ft). From a 128 km/h (79 mph) entry the model brakes for 90 m on the supersport 600, 105 m on the liter bike and 66 m on the twin — the second-longest zone on the course — to a 100 km/h (62 mph) minimum. The exit is 114 km/h (71 mph) in every class, contained because Turn 6 follows almost at once. The pair of lefts at 7 and 6 sit at the top of the circuit's small elevation profile in this direction.
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 115 km/h71 mph | 114 km/h71 mph | 154 km/h96 mph | 12 m39 ft | 86 m281 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 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 150 km/h93 mph | 120 km/h75 mph | 123 km/h76 mph | 42 m138 ft | 96 m314 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
Turn 4
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h76 mph | 116 km/h72 mph | 156 km/h97 mph | 48 m157 ft | 90 m294 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 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 160 km/h99 mph | 121 km/h75 mph | 137 km/h85 mph | 63 m207 ft | 96 m315 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
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 131 km/h81 mph | 106 km/h66 mph | 121 km/h75 mph | 18 m59 ft | 74 m244 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 1
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 159 km/h99 mph | 159 km/h99 mph | 171 km/h107 mph | 0 m0 ft | 225 m739 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