2. Puncture repair kit or two tubes.
3. Pump4. Money
This is what i carry
1] Tyre leaver - 02 - I have the metal ones- you get them for Rs 15 bucks each. I use them on both alloy and steel rims
2] Puncture plast stickers and glue , sandpaper - You can buy them from your local vendor
3] Valve remover ( for schrader valve)
4] Mini pump
5] Spare Tube if I am doing more than 25kms of ride, I do not carry a spare tube if its a short ride.
6] Super B allen key set which also has a chain remover
7] 14g spoke wrench ( only on cycle tour)
8] Spanner if you have any nuts and bolts on your bike
9] A saddle bag to fit most of these things, some will have to be carried separately.
Nothing is heavy Aaron, Of course it goes without saying that i dont carry all this stuff on local commute of 5 to 10 kms. This is SOS kit for any case. Valve remover is just 12 to 15 gms in weight.
I mostly do 45kms plus at a time and sometimes over 100 kms at one go hence i carry stuff, you never know when you may need it. I have been at the receiving end a few times which has made me wiser now.