What are the steps involved in a basic bike tune up?

A basic bike tune-up involves several steps:

1. Check and adjust tire pressure
2. Inspect and lubricate the chain
3. Adjust the brakes and gears
4. Check and tighten bolts and screws
5. Inspect and adjust the headset and bottom bracket
6. Check and adjust the seat and handlebar position
7. Test ride the bike to ensure everything is working properly.