New 7 speed commuter with Shimano SIS index. No noise on stand, shifts smoothly but low clanking sound on road when pedaling in 4th & 5th though not other gears : r/bikewrench
Amazon.com : Shimano Tourney TY500 6/7-Speed Long Cage Rear Derailleur with Frame Hanger for BMX/Track Frame : Sports & Outdoors
How to adjust Shimano Tourney Derailleur - YouTube
Shimano Tourney RD-TY300-SGS Rear Derailleur - 6/7 Speed, Long Cage – The Path Bike Shop
Shimano SIS Rear derailleur fixing problem - Bicycles Stack Exchange
Shimano SIS Rear derailleur fixing problem - Bicycles Stack Exchange