diff --git a/src/hoverboard-esc-serial-comm.cpp b/src/hoverboard-esc-serial-comm.cpp
index 5c6e894..7126e13 100644
--- a/src/hoverboard-esc-serial-comm.cpp
+++ b/src/hoverboard-esc-serial-comm.cpp
@@ -3,7 +3,8 @@
 
 ESCSerialComm::ESCSerialComm(HardwareSerial &_serialRef) { //constructor
     serialRef=&_serialRef;
-    wheelcircumference=0.5278; //8.4cm radius -> 0.084m*2*Pi
+    //wheelcircumference=0.5278; //8.4cm radius -> 0.084m*2*Pi
+    wheelcircumference=0.5394; //korrigiert am 20240722 nach testfahrt
 }
 
 void ESCSerialComm::init() {