autorité je suis daccord De la conversation shimano 515 鍔 Défi Russie
Shimano Tourney RD-TY21 6/7/8 MTB / Hybrid Bike Rear Derailleur NEW | Random Bike Parts
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