I have a dedicated backpack for recreational cycling with:
- Jacket
- 0,5 Liter bottle of water
- A snack

- spare tube
- patch kit (glue, patches, tire Levers)
- A few spare bolts
- Wrench (not sure what size, but it fits)
- Swisstool
- Hex keys
- Piece of cloth
- Working gloves
- Latex gloves
- Pump (mounted on the bike)
- Bottle with diluted energy drink (mounted on the bike)

- FAK (don't have a list of the contents)
- LED lights, front and back. (optional)

For daily commute from mine home to the trainstation and from the station to work (i own 4 bicyles), well just mine EDC and workgear and no bicyle stuff.