Originally Posted by AJW2W11E

How do I correct a chain that falls off the big chain ring outwards? When I hit a bump or stomp hard to climb a hill my chain falls the big chain ring outwards (towards the pedals). The last few times this has happened, I tightened up the Upper Limit screw on my front derailleur. That helped, but the last time I tightened it, I noticed I couldn't downshift to the intermediate chain ring. I should have fixed then and there, but I didn't Today I went for a ride and the chain stiil fell off when I stomped hard to clear a small gulley. That was bad news, because now I couldn't use my internediate chain ring, which would have been safer. So my chain came off four times today.