diff --git a/Kinematics.cpp b/Kinematics.cpp
index 33620cf..01d113d 100644
--- a/Kinematics.cpp
+++ b/Kinematics.cpp
@@ -29,7 +29,6 @@
 #include "Kinematics.h"
 
 Kinematics::Kinematics(int motor_max_rpm, float wheel_diameter, float fr_wheels_dist, float lr_wheels_dist, int pwm_bits):
-  wheel_diameter_(wheel_diameter),
   circumference_(PI * wheel_diameter),
   max_rpm_(motor_max_rpm),
   fr_wheels_dist_(fr_wheels_dist),
diff --git a/Kinematics.h b/Kinematics.h
index 02dcf1a..4a9a023 100644
--- a/Kinematics.h
+++ b/Kinematics.h
@@ -63,7 +63,6 @@ class Kinematics
     float y_rpm_;
     float tan_rpm_;
     int max_rpm_;
-    float wheel_diameter_;
     float fr_wheels_dist_;
     float lr_wheels_dist_;
     float pwm_res_;