> On Sep 9, 2021, at 6:59 PM, Dan Yang <dsy...@gmail.com
> Thanks! So I just need a 9 speed shifter?
Yup, just a 9-speed rear shifter and you should be good to go!
Also, I’m 92.3% sure that you don’t need a new wheel to fit a 9-speed cassette if the old wheel took an 8-speed Shimano MTB cassette.