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
Shimano SIS deraileur(5 Speed) to Tourney(6/7 Speed) : r/bikewrench
Shimano SIS 6 Speed | Rotorbuddy | Flickr
Amazon.com : Rear Derailleur, Huazu Bike Parts Gear Shifter for RD-TZ31-A with Direct Mount/Hanger Mount for 6/7 Speed Mountain Bicycles : Sports & Outdoors
Shimano SIS Rear derailleur fixing problem - Bicycles Stack Exchange