Increasing jsHeap (and Jank) on 63 line Baconjs animation code

[A'braham Barakhyahu]

Could use another set of eyes on  this.

I written a sample app that moves 4 rounded divs in a circular pattern (63 lines), using Baconjs and ES6 syntax(via babel). after a few seconds it stutters due to some objects being Garbaged Collected,  but I can't see what/where. Can someone take a look to see how I can stop the js heap from steadily increasing? http://jsbin.com/jaralev/edit?css,js,console,output