*At random, the FIA allocates certain barcodes to each team. The allocated tyres are then sorted out by team in Didcot and loaded into seven trucks for transportation to the grand prix (four trucks for F1, three trucks for GP2 and GP3).
One week before the grand prix:
*The trucks set off from Didcot for the race, normally arriving on the Monday before the race takes place. The 18 fitters set up the fitting area and the barcodes are confirmed again with the FIA.
Five days before the grand prix:
*The fitters start fitting tyres onto the rims. It takes an experienced fitter 2.5 minutes to fit one tyre from start to finish: for all the tyres of the weekend they need two days. The teams own the wheels: they are brought to Pirelli at the circuit for the tyres to be fitted onto them.
During the grand prix weekend:
*The sporting regulations determine that one set of the harder dry tyre must be returned after the first practice session, with one set of the softer and one set of the harder compound to be returned before the start of the third practice session. A further set of softer and one of the harder compound must be returned before the start of qualifying. This means that each driver has six sets of the dry compounds (three of each specification) available for qualifying and the race.
*Tyres that are returned get taken off their rims, as they won't be used anymore, with the rims being returned to the teams.
After the grand prix:
*All remaining tyres, both used and unused, are taken off their rims and then transported back to Didcot. When they arrive, the tyres are taken to a specialised plant where they are shredded and then burned at very high temperature in order to produce fuel for cement factories. The material produced in this process can also be used for road surfaces and other industrial applications.
Feature courtesy of Pirelli