Hi all. I'm completely new to this and appreciate your guidance. When in 4/5 gear my chain sounds like it's crunching and the derailleur jumps sometimes making a loud crunching sound when peddling. No issues in other gears.
Video attached for example.
How do I sort this out?
Cheers.
New bike chain and derailleur issue
byu/carbon-will inbikewrench
by carbon-will
1 Comment
indexed? if yes, could be a worn cassette.