diff --git a/bits_motor_driver_tb6612fng.h b/bits_motor_driver_tb6612fng.h
index ec69317ceb8e1ba94e2ffa80b72048168b81d8f8..7963f7a5cb584bb3bc34d2ab6a7949ac596ad52d 100644
--- a/bits_motor_driver_tb6612fng.h
+++ b/bits_motor_driver_tb6612fng.h
@@ -16,17 +16,11 @@
 class bits_MotorDriverTB6612FNG : public thk_MotorDriverTB6612FNG
 {
     public:
+        // thk_MotorDriverTB6612FNG(motor_count, pin_stby, pin_pwm_a, pin_in_1, pin_in_2, pin_pwm_b, pin_in_3, pin_in_4);
         bits_MotorDriverTB6612FNG() : thk_MotorDriverTB6612FNG(1, 38, 6, 40, 42, 0, 0, 0){};
 
     private:
-        uint8_t motor_count = 1;
-        uint8_t pin_stby = 38;
-        uint8_t pin_pwm_a = 6;
-        uint8_t pin_in_1 = 40;
-        uint8_t pin_in_2 = 42;
-        uint8_t pin_pwm_b = 0; 
-        uint8_t pin_in_3 = 0; 
-        uint8_t pin_in_4 = 0;    
+
 };
 
-#endif
\ No newline at end of file
+#endif