diff --git a/src/openrct2/ride/Vehicle.cpp b/src/openrct2/ride/Vehicle.cpp
index 1890553909..c4501edeef 100644
--- a/src/openrct2/ride/Vehicle.cpp
+++ b/src/openrct2/ride/Vehicle.cpp
@@ -393,12 +393,6 @@ static constexpr CoordsXY kSurroundingTiles[] = {
     { 0, +kCoordsXYStep },
 };
 
-/** rct2: 0x009A39C4 */
-static constexpr int32_t kUnk9A39C4[] = {
-    2147483647, 2096579710, 1946281152, 2096579710,  1946281152,  1380375879, 555809667,  -372906620, -1231746017, -1859775391,
-    1380375879, 555809667,  -372906620, -1231746017, -1859775391, 0,          2096579710, 1946281152, 2096579710,  1946281152,
-};
-
 static constexpr OpenRCT2::Audio::SoundId kDoorOpenSoundIds[] = {
     OpenRCT2::Audio::SoundId::null,       // DoorSoundType::none
     OpenRCT2::Audio::SoundId::doorOpen,   // DoorSoundType::door
@@ -5036,7 +5030,7 @@ OpenRCT2::Audio::SoundId Vehicle::ProduceScreamSound(const int32_t totalNumPeeps
 GForces Vehicle::GetGForces() const
 {
     int32_t gForceVert = ((static_cast<int64_t>(0x280000)) * Geometry::getPitchVector32(pitch).x) >> 32;
-    gForceVert = ((static_cast<int64_t>(gForceVert)) * kUnk9A39C4[EnumValue(roll)]) >> 32;
+    gForceVert = ((static_cast<int64_t>(gForceVert)) * Geometry::kRollHorizontalComponent[EnumValue(roll)]) >> 32;
 
     const auto& ted = GetTrackElementDescriptor(GetTrackType());
     const int32_t vertFactor = ted.verticalFactor(track_progress);
diff --git a/src/openrct2/ride/VehicleGeometry.cpp b/src/openrct2/ride/VehicleGeometry.cpp
index 6882f12149..25a27e3a33 100644
--- a/src/openrct2/ride/VehicleGeometry.cpp
+++ b/src/openrct2/ride/VehicleGeometry.cpp
@@ -183,4 +183,11 @@ namespace OpenRCT2::RideVehicle::Geometry
     });
     static_assert(std::size(kPitchToDirectionVectorInt32) == EnumValue(VehiclePitch::pitchCount));
 
+    /** rct2: 0x009A39C4 */
+    constexpr auto kRollHorizontalComponent = std::to_array<int32_t>({
+        2147483647,  2096579710,  1946281152,  2096579710, 1946281152, 1380375879, 555809667,
+        -372906620,  -1231746017, -1859775391, 1380375879, 555809667,  -372906620, -1231746017,
+        -1859775391, 0,           2096579710,  1946281152, 2096579710, 1946281152,
+    });
+    static_assert(std::size(kRollHorizontalComponent) == EnumValue(VehicleRoll::rollCount));
 } // namespace OpenRCT2::RideVehicle::Geometry
diff --git a/src/openrct2/ride/VehicleGeometry.h b/src/openrct2/ride/VehicleGeometry.h
index d877882d3a..7768dbbddf 100644
--- a/src/openrct2/ride/VehicleGeometry.h
+++ b/src/openrct2/ride/VehicleGeometry.h
@@ -29,6 +29,7 @@ namespace OpenRCT2::RideVehicle::Geometry
     extern const std::array<Unk9A36C4Struct, 32> kFreeroamVehicleMovementData;
     extern const std::array<int32_t, EnumValue(VehiclePitch::pitchCount)> kAccelerationFromPitch;
     extern const std::array<CoordsXY, EnumValue(VehiclePitch::pitchCount)> kPitchToDirectionVectorInt32;
+    extern const std::array<int32_t, EnumValue(VehicleRoll::rollCount)> kRollHorizontalComponent;
 
     /** The distance between subposition points in a movement vector.
      * Squashes vector components to 0 or !0, so vector length is ignored.