got myself equipped with some
water-tight travel bags:
1 daypack, 26 litre,
for whatever is needed for a day trip
1 roll bag, 50 litre,
for trips with overnight stays
3 little bags, 5 litre each,
two filled with rainsuits, the remaining for whatever.

the big roll bag fits perfectly into the footwell.
the others are above the rear Wheel.
