Bike Forums - View Single Post - Shimano 8 speed Claris rear derailleur with 10 speed bar end shifter SL-BS78 or 79
Old 03-04-18, 02:01 PM
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CliffordK
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I think you're fine as long as you don't mix Tiagra 10 (4700) parts with 8s and 9s parts.
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