I plan on using this cage extender on my SRAM Apex drivetrain: [Rear Derailleur Cage for SRAM 11/12-speed | Garbaruk Online Store](https://www.garbaruk.com/rear-derailleur-cage-for-sram-11-12-speed.html?category=15)
If I am switching from an 11-42 cassette to an 11-50 cassette, would I need a new, longer chain?
(Sorry, I still don’t completely understand how bike derailleurs work)
by Bluepig85