diff --git a/sim/visuals/nodes/largeMotorView.ts b/sim/visuals/nodes/largeMotorView.ts
index a81886dc..42aeb2e8 100644
--- a/sim/visuals/nodes/largeMotorView.ts
+++ b/sim/visuals/nodes/largeMotorView.ts
@@ -5,8 +5,6 @@ namespace pxsim.visuals {
 
         private static ROTATING_ECLIPSE_ID = "1eb2ae58-2419-47d4-86bf-4f26a7f0cf61";
 
-        private lastMotorAnimationId: any;
-
         constructor(port: number) {
             super(LARGE_MOTOR_SVG, "large-motor", NodeType.LargeMotor, port);
         }
@@ -15,7 +13,6 @@ namespace pxsim.visuals {
             const motorState = ev3board().getMotors()[this.port];
             if (!motorState) return;
             const speed = motorState.getSpeed();
-            if (this.lastMotorAnimationId) cancelAnimationFrame(this.lastMotorAnimationId);
 
             if (!speed) return;
             this.setMotorAngle(motorState.getAngle());
diff --git a/sim/visuals/nodes/mediumMotorView.ts b/sim/visuals/nodes/mediumMotorView.ts
index 09d0e5a0..546b7e4a 100644
--- a/sim/visuals/nodes/mediumMotorView.ts
+++ b/sim/visuals/nodes/mediumMotorView.ts
@@ -11,8 +11,6 @@ namespace pxsim.visuals {
         private hasPreviousAngle: boolean;
         private previousAngle: number;
 
-        private lastMotorAnimationId: any;
-
         constructor(port: number) {
             super(MEDIUM_MOTOR_SVG, "medium-motor", NodeType.MediumMotor, port);
         }
@@ -25,7 +23,6 @@ namespace pxsim.visuals {
             const motorState = ev3board().getMotors()[this.port];
             if (!motorState) return;
             const speed = motorState.getSpeed();
-            if (this.lastMotorAnimationId) cancelAnimationFrame(this.lastMotorAnimationId);
 
             if (!speed) return;
             this.setMotorAngle(motorState.getAngle());