Cycle-based Breakdown Patrols

...
With 60,000 cars and more than 100 breakdowns expected over the two weeks of Wimbledon, the bikes will cut through busy car parks to help ease the chronic delays that often result for thousands of revellers.
...
The new pushbikes represent a return to century-old roots for the AA, best known for its familiar yellow vans. The first AA patrols rode cycles from 1905

http://www.theaa.com/motoring_advice/about_aa/aa-bicycle-patrols.html