Hey everyone, I started a little project on my old cannondale f300 to make it into a 9 speed, using just the middle front chainring. I've noticed that the chain easily pops off and I was told to use an old front deraileur as a chain guide. can anyone tell me how I would lock out the front der. in the second chainring position? Thanks guys.
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Thread: Help Locking a Front Deraileur