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
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How to adjust bike Derailleur gears Shimano SIS gear setup adjusting bike DIY - YouTube
Shimano Tourney RD-A070 Rear Derailleur - 7 Speed, Short Cage, Black, Shimano Rear Direct Mount - SoCal Bike - Oceanside, Carlsbad and north San Diego county's favorite bike shop, Bicycle and ebike