Hey all. I've been having issues with my drive train when I skid or apply back pressure. My chain skips of my chain ring which leads to a series of events where it locks up the back wheel since it tightens around bottom bracket shell (like a moving rotafix).

I have no idea why its doing this. I've already addressed the following issues and none seem to be the problem:

My chainline is bang on.
My chain tension is good.
My chainring is pretty close to centre.

Could it be that I'm running a 3/32 chain ring with a 1/8 cog and chain? Is it that my cog is stampedI have a steel frame so is it possible that im torquing the BB area of the bike enough to put the chain line off?

Let me know if there is anything I'm over looking.