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chain falling off older bike?

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Old 10-08-09, 10:15 AM
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chain falling off older bike?

I have an old Gitane 10spd from the 80s. I ride it around the city and to work occasionally. The commute is only 4 miles rt. Anyway last fall I was going to pick up some sammiches and accelerating to make a light, when the chain slipped off sending me over the handlebars and into the ER overnight. So I took it in to the shop and they adjusted my derailleur so it wouldn't happen again. (I also got new pedals b/c one of them had snapped in a separate incident). So everything was fine for this summer until yesterday when the chain slipped again. Going up a hill it came off the 2nd smallest cog and similar to last time, skipped over the smallest and wedged between it and the frame. Luckily i didnt fall but now I'm nervous about the bike. Seems like a lot of people on here commute on older rides, is this just one of the hazards you have to deal with or can it be fixed? Maybe I should get a new bike for the first time since 1983?

Any advice much appreciated.
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Old 10-08-09, 10:17 AM
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sounds like a worn out cog/chain.
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Old 10-08-09, 10:38 AM
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Originally Posted by jco1385
sounds like a worn out cog/chain.
+1
The age of the bike really has nothing to do with the problem, UNLESS it's never had any maintenance in it's lifetime and had worn parts (ie: chain/cogs) replaced as needed. You don't provide much information on the mechanical history of the bike. An older bike with proper maintenance will function just as well as a newer one. (Sometimes better)
A bike shop should have spotted a worn chain/cogs, but these days who knows?
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Old 10-08-09, 10:42 AM
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I've had it since 93 and haven't replaced either. but i never rode it much... just replaced the tires last year. what do you look for to spot the worn cog/chain?
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Old 10-08-09, 11:06 AM
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read this article. it should help you out.

https://www.sheldonbrown.com/chains.html
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Old 10-08-09, 11:14 AM
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cool, thanks!
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