Originally Posted by
jaxgtr
you could get a 14-28, get rid of the 12 in your existing cassette and add the 16.
14 - 28 Junior Cassette is single tooth jumps to the 21. 14-15-16-17-18-19-20-21-23-25-28
According to Mike Shermans gear chart, Shimano has an 11 spd. 11-32 with a 16. Says 11-12-13-14-15-16-17
https://mike-sherman.github.io/shift/
Don't know if it exists.