Classified hubs are optimised for 1X chainrings (minimal 40T (SL 04012024 : 46T in combination with 11-40T cassette) for Road & Gravel applications using the 142mm Powershift hub. minimal 30T for MTB applications using the 148mm Powershift boost hub)
Classified is designed to be flexible, so you can tailor it to your own needs. As a general guide, we suggest you choose a chainring similar to your current big ring for the same size cassette.
Please observe compatibility with your crank and also check for the required clearances for the chain and chainrings for your frame manufacturer.