Thread: 1985 Schwinn 12 speed Shimano 105 rear derailleur?
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Old 10-03-11, 06:48 AM
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rhenning
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Yes you can, if the 105 is a long cage model. You will need to use it in friction shifting. The Sun Tour is actually a better derailuer unless it is broken. I doubt the rear is 14 to 40. More likely 14 to 34. Roger
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