diff --git a/VectoCore/VectoCoreTest/Models/Simulation/PwheelModeTests.cs b/VectoCore/VectoCoreTest/Models/Simulation/PwheelModeTests.cs
index ed6eb4401fd610eaee4935c1c8e624fc1d0cc856..c91e15046989e5d1a68f1f81c64796ad39bae6c5 100644
--- a/VectoCore/VectoCoreTest/Models/Simulation/PwheelModeTests.cs
+++ b/VectoCore/VectoCoreTest/Models/Simulation/PwheelModeTests.cs
@@ -68,8 +68,12 @@ namespace TUGraz.VectoCore.Tests.Models.Simulation
 
 			var cycleFile = new MemoryStream(Encoding.UTF8.GetBytes(inputData));
 			var drivingCycle = DrivingCycleDataReader.ReadFromStream(cycleFile, CycleType.PWheel, "", false);
-			
-			var gearbox = new CycleGearbox(container, new VectoRunData());
+
+			var gearbox = new CycleGearbox(container, new VectoRunData() {
+				GearboxData = new GearboxData {
+					Gears = new Dictionary<uint, GearData> { { 1, new GearData { Ratio = 2.0 } }, { 2, new GearData { Ratio = 3.5 } } }
+				}
+			});
 
 			var cycle = new PWheelCycle(container, drivingCycle, 2.3, null,
 				gearbox.ModelData.Gears.ToDictionary(g => g.Key, g => g.Value.Ratio));