         self.layer.shadowOpacity = 1
         self.layer.shadowOffset = CGSize(width: 0, height: 1)
         
+        self.createSpeedLables()
+        self.setFormattedSpeed()
+    }
+    
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    // MARK: - Private helpers
+    
+    private func createSpeedLables() {
         // Number label
         let speedLable = UILabel()
         speedLable.font = UIFont.systemFont(ofSize: 24)

    
    var speed: Double = 0 {
        didSet {
            guard self.speedLable != nil else { return }
            self.setFormattedSpeed()
        }
    }
    // MARK: - Init
    
    init(size: CGSize, anchorPoint: FloatingSpeedWidgetAnchor) {
        let bounds = UIScreen.main.bounds
        var anchor = CGPoint(x: 0, y: 0)
        
        let size = min(size.width, size.height)
        
        switch anchorPoint {
        case .bottomLeft:
            anchor = CGPoint(x: MARGIN_FROM_BOUNDS, y: bounds.height-size-MARGIN_FROM_BOUNDS)
        case .topLeft:
            anchor = CGPoint(x: MARGIN_FROM_BOUNDS, y: MARGIN_FROM_BOUNDS)
        case .bottomRight:
            anchor = CGPoint(x: bounds.width-size-MARGIN_FROM_BOUNDS, y: bounds.height-size-MARGIN_FROM_BOUNDS)
        case .topRight:
            anchor = CGPoint(x: bounds.width-size-MARGIN_FROM_BOUNDS, y: MARGIN_FROM_BOUNDS)
        }
        
        super.init(frame: CGRect(x: anchor.x, y: anchor.y, width: size, height: size))


        let unitLableCenterxConstraint = NSLayoutConstraint(item: unitLable, attribute: .centerX, relatedBy: .equal, toItem: speedLable, attribute: .centerX, multiplier: 1, constant: 0)
        let unitLableTopConstraint = NSLayoutConstraint(item: unitLable, attribute: .top, relatedBy: .equal, toItem: speedLable, attribute: .bottom, multiplier: 1, constant: -4)
        self.addConstraints([unitLableCenterxConstraint, unitLableTopConstraint])
    }
    
    private func setFormattedSpeed() {
        guard self.speedLable != nil && self.unitLable != nil else { return }
        
        let locationFormatter = TTTLocationFormatter()
        locationFormatter.numberFormatter.maximumFractionDigits = 0
        
