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Old 07-16-14, 09:24 PM   #1
rms13
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Front derailleur adjustment help

Shimano 600 FD with DT shifters on my Centurion. When I'm in the big chain ring after a minute or two I start to get chain rub. I can trim the shifter and then I can pedal smooth with no noise but after another minute or two I need to trim it again. So basically seems like the lever is moving on it's own/not staying in one place. Is my cable tension too tight? Is this a limit adjustment? Is this just nature of the beast with friction shifters?
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Old 07-16-14, 09:35 PM   #2
alcjphil
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Your friction shifters don't have enough friction. There is usually an adjustment screw to increase the friction
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Old 07-16-14, 10:07 PM   #3
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Tighten the attachment screws that hold it onto the downtube clamp. Most (if not all) have a keyring knob on the screw itself so you can tighten it without tools.
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Old 07-16-14, 10:28 PM   #4
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Thanks for the responses. I tightened the screw on the shifter. First bike with DT shifters so I didn't even know that was an adjustment point
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