Shimano Acera RD-M390 derailleur replacement at home | Replace derailleur without opening chain ?

Shimano Acera RD-M390 derailleur replacement at home Replace derailleur without opening chain Like this video if you learn something Derailleur name : Shimano Acera RD-m390 Subscribe to my main channel for tech videos. Channel name Techy Hrik Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. See you soon guys ? Thanks for watching ?