Couldn't find an answer to this, apologies if it's been covered - need to replace my rear derailleur which is a Tiagra 4600. Can I use the updated 4700 with the 4600 shifters or this that literally mental?
No.
Put any Shimano derailleur and you'll be fine, 5600, Sora, etc.
@Sebbb started
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Couldn't find an answer to this, apologies if it's been covered - need to replace my rear derailleur which is a Tiagra 4600. Can I use the updated 4700 with the 4600 shifters or this that literally mental?