Cassettes will wear with chain. It is unusual for the littlest cog to skip as it is thr one in the middle that wear as those see most usage.
I may havr a worn shimano cassette 11_32 so could send you the small cog, i hardly rver use the 1 or 2 tinirst cog and avoid using the largrsy on climbs so i always onr sprocket in reservr.
I may havr a worn shimano cassette 11_32 so could send you the small cog, i hardly rver use the 1 or 2 tinirst cog and avoid using the largrsy on climbs so i always onr sprocket in reservr.