BIKE CHAIN NOISE REASON AND HOW I FOUND THE SOLUTION AND FIXED IT - YouTube
What are some options for quieter chain operation?
Roller chain 50-1 ANSI, 5/8" x 3/8", silent noise chain, DIN 8188, pitch 15,88 mm, inner width 9,53 mm, roller-Ø 10,80 mm, TSUBAKI, package 3,05 M. incl. conn.link | MOVET