Thread: Component help
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Old 06-27-20, 12:51 PM
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No, your 105 rear derailleur won't handle that large a cog on the cassette. You would likely need a true mountain bike length long-cage to achieve that and..... someone correct me if I'm wrong here, but I'm pretty sure your 11 speed STI shifters won't have the same length pull as needed for that MTB derailleur.
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