Bike build help! Is this shimano 105 r7000 derailleur correctly attached to this hanger? The B link thing is confusing (Bike frame is vintage racer frame from early 90s) More details in
Get your gears shifting sweetly: How to tune a rear derailleur | road.cc
How to – MTB Shifters & Derailleurs: Adjusting the Rear Derailleur | bike-components
Installing a Shimano 105 RD-R7150 rear derailleur onto a 2019 Checkpoint SL5 and I'm having trouble determining whether or not I need the mounting piece circled. Googling only made me more confused.
How to adjust a rear derailleur in 5 easy steps | Cyclist