diff --git a/andino_gz_classic/urdf/andino_gz_classic.xacro b/andino_gz_classic/urdf/andino_gz_classic.xacro
index 22911df7..80598a23 100644
--- a/andino_gz_classic/urdf/andino_gz_classic.xacro
+++ b/andino_gz_classic/urdf/andino_gz_classic.xacro
@@ -67,7 +67,7 @@
 
       <!-- kinematics -->
       <wheel_separation>0.137</wheel_separation>
-      <wheel_diameter>0.035</wheel_diameter>
+      <wheel_diameter>0.0662</wheel_diameter>
 
       <!-- limits -->
       <max_wheel_torque>20</max_wheel_torque>