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dura ace 7400 derailleur pulley wheels

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dura ace 7400 derailleur pulley wheels

Old 06-18-11, 06:51 PM
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dura ace 7400 derailleur pulley wheels

I've got a Dura Ace 7400 6-speed RD. The top pulley wheel is metal, the other is plastic. Can the plastic one be substituted with another metal one, or does the plastic one serve a specific purpose in being plastic?
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Old 06-18-11, 08:20 PM
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The upper pulley on the 7400 derailleur requires some lateral float for the indexing to work properly. It is not interchangeable with the lower pulley, although it is possible that a modern upper pulley with lateral float might work.
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