M3020 is the latest Shimano derailleur that can do 40t sprockets however won’t have the chain retention of a clutched derailleur, but for city riding it work fine.
The worst it’ll see is a bit of tow path and I’ve got an N/W chainring and the Acera is Russ Less Pedalled favourite RD so I’ll give it a go. Thanks!
@edscoble started
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M3020 is the latest Shimano derailleur that can do 40t sprockets however won’t have the chain retention of a clutched derailleur, but for city riding it work fine.