Looks like someone forgot to put the screw/bolt back in the coaster brake arm that holds it to the frame...
i did just not tight... does any one know where to get a master link for the 415 chain with out having to order it or buy a new chain? alot of the bike shops here either never heard(racing bikes) of it or dont carry it and if they do carry it they have the whole chain. i just need the locking piece. is there anything else i can useLooks like someone forgot to put the screw/bolt back in the coaster brake arm that holds it to the frame...
thank you to everyone for your advice.Kr- you gotta keep that tensioner from turning- drill a small hole thru it into the frame for a short,small sheet metal screw and that will keep it from rotating (select a drill that is a tad bigger than the inner dimension of the sheetmatal screw- so it will go in, but still cut threads into the metal as you put it in). THEN see if the chain stays on. You still got a lot of time before we get decent riding weather. Relax.