2 different SON Schmidts, 28 on the 26" wheel bike, 6 bolt disc
and the newer one for the 20" wheel., centerlock disc.

now with EDelux LED headlights

more commuter than summer tourer, long daylight in high summer
a battery Planet Bike one seems sufficient, just to make an overnight reservation ,
further away, than you planned..

PB has a removable wired to the hub LED that is like the battery ones
in that same handlebar clip fits, both..
but won't serve as a bright camp flashlight,