Originally Posted by
big john
The chain came out pretty easy in this case but falling on the rear derailleur ruined his ride.
One time I was waaayy back in the mountains when a friend got his chain stuck bad. I had a mini tool with an 8mm Allen and was able to loosen the crank bolt with my foot. Somehow that was enough to get the chain out.
in the early 90's for the first gen OCLV road frames, Trek supplied a large stainless steel 'washer' to install behind the drive side bottom bracket cup to prevent chain drops / suck from jamming and/or sawing through the frame
Trek did this after a number of reported incidents
.