diff --git a/VECTO/Input Files/cVEH.vb b/VECTO/Input Files/cVEH.vb
index 8212e5a7f2bc1dbfb35e12160e87d21bebd42ba2..13bc8a936373560497071228286ccb6879d687ca 100644
--- a/VECTO/Input Files/cVEH.vb	
+++ b/VECTO/Input Files/cVEH.vb	
@@ -383,7 +383,7 @@ Public Class cVEH
 				a0 = New cAxle
 
 				a0.Inertia = 0	 'Defined later
-				a0.Wheels = "385/65 R22.5"
+				a0.Wheels = cDeclaration.TyreTr
 
 				a0.Share = a / 100
 				a0.TwinTire = False
diff --git a/VECTO/cDeclaration.vb b/VECTO/cDeclaration.vb
index 63a570a4511a902ae6ad5d1e434f5626535c9c2f..a70d8f378f20f6c6168f3e1df176211781bb7bba 100644
--- a/VECTO/cDeclaration.vb
+++ b/VECTO/cDeclaration.vb
@@ -38,6 +38,7 @@ Public Class cDeclaration
 
 	Public Const RRCTr As Single = 0.00555
 	Public Const FzISOTr As Single = 37500
+	Public Const TyreTr As String = "385/65 R22.5"
 
 	Public Const AirDensity As Single = 1.188
 	Public Const FuelDens As Single = 0.832