If you switch from standard sized jockey wheels to oversized jockey wheels (for instance, a Rock Bros cage with 17t wheels) will you need a longer chain or will the chain be the same length but with gentler curves in its path?
Same length as long as the pulley cage can pivot enough to get the chain straight when in the big-big position with the chain too short. That's not a given, so check in the usual way, you may need a slightly longer chain.
If you switch from standard sized jockey wheels to oversized jockey wheels (for instance, a Rock Bros cage with 17t wheels) will you need a longer chain or will the chain be the same length but with gentler curves in its path?