Originally Posted by
Liveon2wheels
12-34t? 24t? 28t? 12/13-23/25 cassette.
I am too newb to understand this?
12 = the number of teeth on the smallest cog.
The other number = the number of teeth on the biggest cog. A smaller number, like 24, means the steps between gears will be closer. A bigger number, like 34, means you'll have an easier hill climb gear. Which is better for you is a question that only you can answer.