Originally Posted by janssenrider1

i had a problem similar to this one with my fixed gear, except i was in the uncomfortable position of my chain actually slipping all the way off whenever forceful backwards pressure was applied to the cranks. I thought of everything that i could as to why this was happening and it came down to a very simple solution. My chain alignment was severely off. Something i didn't notice until it was brought to my attention (i'm kinda blind) but maybe its something you should check. it was relatively simple to fix after i noticed the problem.