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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 07-23-09, 03:50 AM   #1
cs1
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Top Pull Derailleur Help

Is there any way to convert a top pull ft der to a bottom pull? I'm not inclined to have new cable brazeons fitted to the bike just to use it.
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Old 07-23-09, 06:14 AM   #2
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A new, proper pull fd is probably the easiest, and most likely the cheapest, fix.
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Old 07-23-09, 06:47 AM   #3
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If your current FD cable housing is the problem you might find the solution in rerouting it. My older Simplex FD was a pushrod type and when I converted over to a Shimano Deore XT I discovered that I could not use the same cabling setup. Inspired, I ran the cable housing under the bottom bracket and back through the chain stays. It works like a charm. Even though there is quite a radius in the new route I have not had any problems. I do use the teflon coated cables and cable housing from Jagwire and they are great. Interestingly enough, I did that back in 1982. Nowadays almost all derailleur cables are run under the bottom bracket through a guide mounted to the bracket.
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Old 07-23-09, 12:47 PM   #4
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A dual-pull FD may solve your problems. I tried a pulley to convert a top-pull to bottom-pull. Forget it.
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