The following short videos are available via YouTube - see also videos on mountain biking

  Pump your ride

Washing and lubing your bike

Basic bicycle tool kit

How to operate Quick Release levers

Bicycle Repair and Maintenace

Bicycle Today - Automobile Tomorrow (1969)  
Shows graphically how one should check his bike for mechanical soundness and how to keep it in good running condition. Pictures a boy and a girl demonstrating the importance of knowing the correct bicycle rules and regulations before riding

Headset Adjustment

Zen & the art of Brompton Maintenance, Part 1

Brake adjustment