diff --git a/Client/DataParser.cs b/Client/DataParser.cs
index fd1c7e8..5289c63 100644
--- a/Client/DataParser.cs
+++ b/Client/DataParser.cs
@@ -14,6 +14,7 @@ namespace Client
         public const string LOGIN_RESPONSE = "LOGIN RESPONSE";
         public const string START_SESSION = "START SESSION";
         public const string STOP_SESSION = "STOP SESSION";
+        public const string SET_RESISTANCE = "SET RESISTANCE";
         /// <summary>
         /// makes the json object with LOGIN identifier and username and password
         /// </summary>
@@ -62,6 +63,15 @@ namespace Client
             return getMessage(Encoding.ASCII.GetBytes(JsonConvert.SerializeObject(json)), 0x01);
         }
 
+        private static byte[] getJsonMessage(string mIdentifier)
+        {
+            dynamic json = new
+            {
+                identifier = mIdentifier,
+            };
+            return getMessage(Encoding.ASCII.GetBytes(JsonConvert.SerializeObject(json)), 0x01);
+        }
+
         public static byte[] getLoginResponse(string mStatus)
         {
             return getJsonMessage(LOGIN_RESPONSE, new { status = mStatus });
@@ -153,30 +163,28 @@ namespace Client
             return getMessage(payload, 0x01);
         }
 
-        /// <summary>
-        /// constructs a message with the message and clientId
-        /// </summary>
-        /// <param name="message"></param>
-        /// <param name="clientId"></param>
-        /// <returns>the message ready for sending</returns>
-        public static byte[] getJsonMessage(string message)
-        {
-            return getJsonMessage(Encoding.ASCII.GetBytes(message));
-        }
-
         public static byte[] getStartSessionJson()
         {
-            return getJsonMessage(START_SESSION, null);
+            return getJsonMessage(START_SESSION);
         }
 
         public static byte[] getStopSessionJson()
         {
-            return getJsonMessage(STOP_SESSION, null);
+            return getJsonMessage(STOP_SESSION);
         }
 
-        public static byte[] getSetResistanceJson()
+        public static byte[] getSetResistanceJson(float mResistance)
         {
-            return null;
+            dynamic data = new
+            {
+                resistance = mResistance
+            };
+            return getJsonMessage(SET_RESISTANCE, data);
+        }
+
+        public static float getResistanceFromJson(byte[] json)
+        {
+            return ((dynamic)JsonConvert.DeserializeObject(Encoding.ASCII.GetString(json))).data.resistance;
         }
 
 
diff --git a/ProftaakRH/BLEHandler.cs b/ProftaakRH/BLEHandler.cs
index 6baf843..56de648 100644
--- a/ProftaakRH/BLEHandler.cs
+++ b/ProftaakRH/BLEHandler.cs
@@ -11,7 +11,7 @@ namespace Hardware
     /// <summary>
     /// <c>BLEHandler</c> class that handles connection and traffic to and from the bike
     /// </summary>
-    public class BLEHandler
+    public class BLEHandler : IHandler
     {
         List<IDataReceiver> dataReceivers;
         private BLE bleBike;
diff --git a/ProftaakRH/BikeSimulator.cs b/ProftaakRH/BikeSimulator.cs
index daea355..3d11209 100644
--- a/ProftaakRH/BikeSimulator.cs
+++ b/ProftaakRH/BikeSimulator.cs
@@ -98,32 +98,7 @@ namespace Hardware.Simulators
             return hartByte;
         }
 
-        //Generate an ANT message for resistance
-        public byte[] GenerateResistance(float percentage)
-        {
-            byte[] antMessage = new byte[13];
-            antMessage[0] = 0x4A;
-            antMessage[1] = 0x09;
-            antMessage[2] = 0x4E;
-            antMessage[3] = 0x05;
-            antMessage[4] = 0x30;
-            for (int i = 5; i < 11; i++)
-            {
-                antMessage[i] = 0xFF;
-            }
-            antMessage[11] = (byte)Math.Max(Math.Min(Math.Round(percentage / 0.5), 255), 0);
-            //antMessage[11] = 50; //hardcoded for testing
 
-            byte checksum = 0;
-            for (int i = 0; i < 12; i++)
-            {
-                checksum ^= antMessage[i];
-            }
-
-            antMessage[12] = checksum;//reminder that i am dumb :P
-
-            return antMessage;
-        }
 
         //Calculates the needed variables
         //Input perlin value
@@ -143,20 +118,11 @@ namespace Hardware.Simulators
         }
 
         //Set resistance in simulated bike
-        public void setResistance(byte[] bytes)
+        public void setResistance(float percentage)
         {
-            //TODO check if message is correct
-            if (bytes.Length == 13)
-            {
-                this.resistance = Convert.ToDouble(bytes[11]) / 2;
-            }
+            this.resistance = (byte)Math.Max(Math.Min(Math.Round(percentage / 0.5), 255), 0);
         }
-    }
-
-    //Interface for receiving a message on the simulated bike
-    interface IHandler
-    {
-        void setResistance(byte[] bytes);
 
     }
+
 }
diff --git a/ProftaakRH/IHandler.cs b/ProftaakRH/IHandler.cs
new file mode 100644
index 0000000..c1ce11e
--- /dev/null
+++ b/ProftaakRH/IHandler.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ProftaakRH
+{
+    interface IHandler
+    {
+        void setResistance(float percentage);
+    }
+}