Diagnose my rear derailleur problem
05-25-09, 12:44 AM
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Diagnose my rear derailleur problem
I have around 500 miles on my CAAD9 and I just took the bike in to get a quick tune up. Everything is shifting smoothly except for one gear.
When I am in the second highest gear my rear derailleur makes a ticking sound and actually moves front to back about a quarter inch when pedaling. It is incredibly annoying and I would prefer to not make a trip to the LBS again if this is a simple adjustment. It doesnt do this in any other gear.
Should i adjust the limit screws? cable tension? anything else?
thanks in advance!
When I am in the second highest gear my rear derailleur makes a ticking sound and actually moves front to back about a quarter inch when pedaling. It is incredibly annoying and I would prefer to not make a trip to the LBS again if this is a simple adjustment. It doesnt do this in any other gear.
Should i adjust the limit screws? cable tension? anything else?
thanks in advance!
05-25-09, 06:39 AM
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Don't touch the screws.
What I do is back the cable tension all the way off, then retension until it works right. For some reason, that works better for me than fiddling around with the tension from its current position.
What I do is back the cable tension all the way off, then retension until it works right. For some reason, that works better for me than fiddling around with the tension from its current position.
05-25-09, 06:55 AM
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05-25-09, 10:12 AM
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I tracked an intermittent ticking sound in mine down to a sticky chain link - bike upside-down, pedaling backwards watch the chain coming off the lower derailleur gear. If a link is bound-up at all it will hold an angle instead of straightening out immediately when it rolls past the gear.
05-25-09, 10:18 AM
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Which gear is your "second highest"? Do you mean the second smallest cog in your cassette or your second biggest?
I find the park tool website an excellent resource for RD tinkering:
https://www.parktool.com/repair/readhowto.asp?id=64
I find the park tool website an excellent resource for RD tinkering:
https://www.parktool.com/repair/readhowto.asp?id=64
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