 		
 		@knob.on("change:x", @_updateFill)
 		@knob.on("change:x", @_updateValue)
-		@knob.on("change:size", @_updateFrame)
+		@knob.on("change:size", @_updateKnob)
 		@knob.on(Events.DragMove, @_updateFrame)
 
 		# On click/touch of the slider, update the value

			height: @height + @knob.height
			
		@knob.centerY()
		# @knob.midX = @fill.width
			
	_setRadius: =>
		radius = @borderRadius

	_updateFill: =>
		@fill.width = @knob.midX

	_updateKnob: =>
		@knob.midX = @fill.width
		@knob.centerY()

	_updateFrame: =>
		@knob.draggable.constraints = 
			x: -@knob.width / 2
