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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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Mystery adjustment on Shimano Tourney rear derailleur - Is this "B" adjustment or something else? TIA : r/bikewrench
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Amazon.com : Shimano Tourney TY500 6/7-Speed Long Cage Rear Derailleur with Frame Hanger for BMX/Track Frame : Sports & Outdoors
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Amazon.com : ZUKKA Shimano Rear Derailleur RD-TY21B 6/7 Speed Direct Mount for MTB Mountain Bike : Sports & Outdoors
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