My rear cassette is an SHIMANO 600 mf 6208 Freewheel 13-30 6 speeds, and its look like, maybe, it's time to change it. I would like to know, if I want to update it, is shimano brand new MF-TZ500 6-speed Multiple Freewheel 14-28 cassette is better or worth than my oldschool high level range cassette ?.
in two words, the old high level range is the new middle range level ?