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Old 06-11-10, 02:42 PM   #1
halamadrid
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Beginner derailer question

Hey everybody, Ive been working on some old bicycles for the past several days non stop and I love it. Im learning lots about bearings and what needs to be greased (and what kind of stuff is beyond that, like 50 year old chains)

Im working on 3 bikes. A Raleigh Rollfast, a "mainliner" womens bike, and a schwinn continental. They are all 30-50 years old I believe. I am doing well but on the schwin Im having trouble with the derailers. I understand their function fairly well and Ive got them working well enough to where with the new cables they will shift back and forth to the highest and lowest position with ease. The highs and lows are set to what I think are correct positions. What I am having Trouble with is.... getting them to stay in a position? What I mean is, I move the shifter, it pulls the cable, moves the derailer over, chain gets moved, and them when I let go of the shifter it springs back because of the tension on it and the chain and derailer go back to their original positions. Is this a cable tension issue or whats the deal? I feel like this is a beginner question because Im pretty positive the bike is fine. thanks !
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Old 06-11-10, 03:22 PM   #2
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Have you tried to tighten the screws in the shifters? I am not a mechanic, but what you described, sounds to me like a cable tension issue to me.
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Old 06-11-10, 03:52 PM   #3
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Can you see a screw, bolt, D-ring or something that holds the shifter together? Tighten that down until it holds properly. On old bikes you have friction shifters so you have to tighten the shifter down until you have adequate friction for it to hold.

Pictures of the shifter would help.
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Old 06-11-10, 04:20 PM   #4
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Some shifters will have a D ring like the ones shown below. Some shifters will have a screw. As Al Criner suggested, try tightening the screw or D ring.
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File Type: jpg cc313-4DSCN0211..jpg (86.6 KB, 9 views)
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Old 06-12-10, 12:04 AM   #5
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okay that worked, and was a simple fix. Thanks. it was a wing nut to tighten the shifter pieces. I am missing one of them so i will have to find one similar. Can anyone tell me anything special or unspecial about the schwinn continental? At this point Im an excited to restore it but I have a takara road bike thats in about the same shape. Is one significantly better quality than the other? The schwinn feels more sturdy
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Old 06-12-10, 06:57 AM   #6
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Quote:
Originally Posted by halamadrid View Post
Can anyone tell me anything special or unspecial about the schwinn continental? At this point Im an excited to restore it but I have a takara road bike thats in about the same shape. Is one significantly better quality than the other? The schwinn feels more sturdy
The folks in the Classic & Vintage forum have ALL the answers about old bikes. They like pics too.
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Old 06-12-10, 03:12 PM   #7
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Quote:
Originally Posted by halamadrid View Post
okay that worked, and was a simple fix. Thanks. it was a wing nut to tighten the shifter pieces. I am missing one of them so i will have to find one similar. Can anyone tell me anything special or unspecial about the schwinn continental? At this point Im an excited to restore it but I have a takara road bike thats in about the same shape. Is one significantly better quality than the other? The schwinn feels more sturdy
Ditto what RonH said- C&V is where you want to go.

For starters, though, a Continental is very similar to a Schwinn Varsity, with a couple upgraded parts. There's plenty of history of the Varsity and similar bikes. Start here: http://www.sheldonbrown.com/varsity.html
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