i recently bought a 1977 Gitane Olympic Record II road bike, 58cm, off of ebay for a decent price. (i spent months on cragilist for an 80s road bike with no luck, always sold or wrong size.) anyways i got the bike in the mail and i noticed that the bottom bracket has a ton of play on it. i can wiggle the crank arm with my hand and it goes up and down. it doesn't feel safe to ride over 15mph. maybe a bolt isn't tight enough, more liklely i think the square taper has rounded off. either way i don't have those tools replace it myself.

Question, what size is a '77 Gitane bottom bracket?


i have a Truvativ ISOflow crankset and bottom bracket. i know that is english threaded, i'm guessing the gitane is the french one with smaller diameter.

is there a cheap and easy solution to my problem?