Gravel bike and SS share a saddle bag with
Hexus X mini tool,
pair of tyre levers,
pair co2 canisters and inflator,
tubeless puncture kit,
spare tube,
quick links,
flypaper puncture kit,
strips of gaffer tape,
cable ties,
razor blade,
wee length of single speed chain and
two nurofen plus.
Mountain bike kit is pretty much the same but lives in a camelbak.
Pumps live on the bikes.