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Road Atlanta

Braselton, Georgia · 4.15 km · 2.58 mi · clockwise

Road Atlanta in Braselton, Georgia is modeled here on the Motorcycle Circuit — the bike layout with the riders'-left Turn 3 chicane and the auxiliary Turn 12 that MotoAmerica, WERA and track-day organizers run: 4,150 m (2.58 mi) clockwise, 12 numbered turns. Turn 9 is a flat-out kink the reference line runs straight through. The simulated profile is fastest through the long uphill Turn 1, a 130 km/h (81 mph) minimum, and slowest in the Turn 3 chicane at 63 km/h (39 mph); Turn 5 climbs 7.7 m and Turn 12 drops 11.5 m. Simulated lap times run from 1:30.9 for the liter bike to 1:38.2 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 ATLANTA SIM
Road Atlanta track map with computed racing line
2.58 MI
Lap
13
Corners
258 FT
Climb

Track outline © OpenStreetMap contributors (ODbL)

Road Atlanta — quick facts

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

  • Layout: Motorcycle Circuit, 4,150 m (2.58 mi), run clockwise
  • 13 corner entries: turns 1–12 with 10A and 10B; one flat-out kink (Turn 9)
  • Fastest simulated cornering minimum: Turn 1, 130 km/h (81 mph)
  • Slowest simulated corner: Turn 3 Chicane, 63 km/h (39 mph)
  • Biggest drop: Turn 12 — 11.5 m (38 ft) over 168 m; biggest climb: Turn 5 — 7.7 m (25 ft) over 84 m, with Turn 1 close behind at 7.6 m
  • Longest simulated brake zone: 264 m into Turn 10B on the liter bike
  • Simulated lap estimates: 1:30.9 (liter bike), 1:33.3 (supersport 600), 1:38.2 (middleweight twin); average 150–163 km/h (93–101 mph)

Turn 1

Right243 m arc
EntryMinExitBrake startEff. radiusElev Δ
160 km/h99 mph130 km/h81 mph161 km/h100 mph102 m335 ft112 m368 ft+7.6 m+25 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 9 locked corners on this track.

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Turn 2

Left6 m arc
EntryMinExitBrake startEff. radiusElev Δ
92 km/h57 mph88 km/h54 mph85 km/h53 mph69 m226 ft96 m314 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 9 locked corners on this track.

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Turn 3 — Chicane

Left135 m arc
EntryMinExitBrake startEff. radiusElev Δ
88 km/h54 mph63 km/h39 mph129 km/h80 mph72 m236 ft26 m86 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

This corner's walkthrough is in the all-access pack — along with the other 9 locked corners on this track.

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Turn 4

Left69 m arc
EntryMinExitBrake startEff. radiusElev Δ
130 km/h81 mph127 km/h79 mph149 km/h93 mph0 m0 ft106 m349 ft-3.2 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 9 locked corners on this track.

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Turn 5

Left84 m arc
EntryMinExitBrake startEff. radiusElev Δ
103 km/h64 mph84 km/h52 mph126 km/h78 mph27 m89 ft47 m153 ft+7.7 m+25 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 9 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 6

Right144 m arc
EntryMinExitBrake startEff. radiusElev Δ
132 km/h82 mph106 km/h66 mph126 km/h79 mph114 m374 ft75 m246 ft+3.6 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

A 144 m right at a 74.9 m effective radius that rises 3.6 m. The approach is one of the longer braking events on the lap — 147 m on the liter bike, 114 m on the supersport-600, 78 m on the twin — converging to a 132 km/h (82 mph) entry and a 106 km/h (66 mph) minimum. The corner gives back less than it takes in the trace: exit is 126 km/h (79 mph) for the sport classes and 125 km/h (78 mph) for the twin, below the entry speed, because the tighter Turn 7 arrives before the drive can develop.

Turn 7

Right108 m arc
EntryMinExitBrake startEff. radiusElev Δ
101 km/h63 mph69 km/h43 mph127 km/h79 mph27 m89 ft31 m103 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

This corner's walkthrough is in the all-access pack — along with the other 9 locked corners on this track.

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Turn 8

Left3 m arc
EntryMinExitBrake startEff. radiusElev Δ
124 km/h77 mph124 km/h77 mph127 km/h79 mph72 m236 ft241 m792 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 9 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 9

Right0 m arc
EntryMinExitBrake startEff. radiusElev Δ
262 km/h163 mph262 km/h163 mph262 km/h163 mph0 m0 ft510 m1672 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 9 locked corners on this track.

Unlock every corner · $59 lifetime →

Turn 10A

Left63 m arc
EntryMinExitBrake startEff. radiusElev Δ
114 km/h71 mph74 km/h46 mph90 km/h56 mph168 m551 ft36 m120 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

The first half of the 10A/10B chicane is a 63 m left at a 36.5 m effective radius, rising 1.7 m, and it absorbs the back-straight speed: the supersport-600 model starts braking 168 m before turn-in, the liter bike 189 m and the twin 123 m, all arriving at 114 km/h (71 mph) and reaching a 74 km/h (46 mph) minimum. The exit is only 90 km/h (56 mph) in every class, because the right-hand 10B follows immediately and the trace is already settling for it.

Turn 10B

Right96 m arc
EntryMinExitBrake startEff. radiusElev Δ
104 km/h65 mph80 km/h50 mph128 km/h79 mph243 m797 ft43 m140 ft+6.4 m+21 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 10B is the right-hand half of the chicane: 96 m at a 42.8 m effective radius, climbing 6.4 m. The brake-start distances recorded here are the longest in the data — 243 m on the supersport-600, 264 m on the liter bike, 198 m on the twin — which places the start of braking back before 10A. Entry is 104 km/h (65 mph) for the sport bikes and 103 km/h (64 mph) for the twin, the minimum 80 km/h (50 mph), and the uphill exit 128 km/h (79 mph) for the sport bikes against 123 km/h (77 mph) for the twin.

Turn 11

Right3 m arc
EntryMinExitBrake startEff. radiusElev Δ
125 km/h78 mph125 km/h78 mph128 km/h79 mph90 m295 ft233 m766 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

This corner's walkthrough is in the all-access pack — along with the other 9 locked corners on this track.

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Turn 12

Right168 m arc
EntryMinExitBrake startEff. radiusElev Δ
125 km/h78 mph105 km/h65 mph152 km/h95 mph75 m246 ft72 m237 ft-11.5 m-38 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 9 locked corners on this track.

Unlock every corner · $59 lifetime →