Partly as an aide memoire, here's a list of the things I always carry in my Carradice saddle bag. Some of this stuff may not be necessary for shorter rides, but I wouldn't want to get used to riding light, now would I?
Extra stuff is added for very long rides (e.g. an extra inner tube and electrical items) and this list does not cover clothing.
Most of the content is organized into Alpkit bags to keep things neat.
Loose in the bag
- Pump – a Lezyne mid-sized one with a length of insulating tape around the barrel
- Spare spokes (2 × rear NDS, 2 × rear DS, 2 × front) and some nipples
- Waterproof (Gore shakedry)
- Assorted cable ties
- Pen
- Exposure Joystick light/torch
Tyres / Drivetrain bag
- Spare tyre (Continental 4Seasons 25mm)
- Inner tube
- Genuine Innovations tubeless tyre repair kit
- Plastic tyre levers × 2
- Tyre bead jack
- Di2 cable
- Di2 cable tool
- 2 × ball bungees
- piece of plastic toothpaste tube
- Park tools tyre boot
- Lezyne adhesive patch kit
- Stans valve core tool
- Digital tyre pressure gauge
- Tube of flexible superglue
Medical / toilet bag
- Sun lotion
- Ear plugs
- Plastic ziplock bag
- Sanitizing wipes
- Tick removal tool
- Ibuprofen
- Antihistamine
- Assorted sticking plasters
- Toothbrush & toothpaste
Misc. tools bag
- Nitrile gloves
- Fitment to attach Exposure Joystick as backup front light
- Replacement freewheel star ratchets
- Fibrefix emergency kevlar spoke
- Victorinox SwissCard Classic
- Multitool with chain-splitter
- Quick links for chain
- Derailleur hanger
For longer (≥ 400 km) rides, add some of ...
- Additional inner tube
- Spare CR 2032 batteries
- USB cables
- USB power bank(s)
- USB/mains adaptor
- Di2 charger
- Backup rear light
- Chain lube
- Indigestion tablets
- Baby wipes
- Emergency gel(s)
- Electrolyte tabs