My chain fell off AGAIN today on the way home.. this time it fell off while I was spinning up through a tunnel... I coasted about 100 feet from the top ... sucked... put the chain back on, greasy fingers... waited for cars to go by and there was NO shoulder, I was standing on a drain cover....

Then I get honked at by a truck when I finally start to mash my way back out...

=(

I have to figure out a way to prevent the chain from falling off...