Any bike that gets used will have 'chain suck' marks. Bikes are designed to be thrashed bro. ;)
chain is back on.I think the gear cable for the front must have worked loose or something
Nah, it can happen randomly or could be out of adjustment. Dropping a chain is pretty common really.
Its happend to me so much over the years I can get it back on usually with out touching the chain. Just roll down an incline and put it in the 12 or 23 and soft pedal back/forward whilst shifting the Front D.
got the chain back on, perhaps its time for new chain & cluster
good to hear ;-)
have a tiagra or Ultrgra cassette I can use, just got to find a good chain.Un sure if I should replace chainrings
One can buy gadget to stop a chain from slipping off. Gadget name varies by manufacturer. Discussed on AC at http://www.adelaidecyclists.com/forum/topics/preventing-chain-drop-...