The iO is for epic rides in filthy conditions, or simply an alternative
to derailleurs? With many of the benefits of a single-speed, plus a
range of gears equivalent to an 11-38T rear cassette, the iO ID has
reliable 8-speed Shimano Alfine internal drive technology that shifts
without pedalling, eliminates chain bounce over rough ground and
maintains a constant chain line that laughs off winter mud.

It’s also a bit less maintenance needy when it’s cold, wet
and miserable outside so you can spend more time riding before it gets
dark. Be out there when others are inside.