Tyre

A striking worker wears a tyre around his neck as thousands of workers clad in red demonstrate on the first day of a nationwide strike called by South Africa's National Union of Metalworkers (NUMSA) in Johannesburg Central Business District on July 1, 2014. Nearly a quarter of a million members of South Africa's largest union downed tools on July 1, beginning an indefinite strike that threatens to bring the engineering sector to a halt. The strike is expected to hit more than 10,000 metals and engineering firms that account for about four percent of South African economic output, according to economists at Citigroup.

Mujahid Safodien/AFP

A striking worker wears a tyre around his neck as thousands of workers clad in red demonstrate on the first day of a nationwide strike called by South Africa’s National Union of Metalworkers (NUMSA) in Johannesburg Central Business District

Technicians check tyres at the paddock, ahead of the Belgian Formula One Grand Prix in Spa-Francorchamps, Belgium, Thursday, Aug. 22, 2013. (AP Photo/Yves Logghe)

Yves Logghe/AP

Technicians check tyres at the paddock, ahead of the Belgian Formula One Grand Prix in Spa-Francorchamps, Belgium on Thursday. Read more

French tyre maker Michelin employees, mostly from the Joue-les-Tours plant, run away from tear gas spread by security member

Thierry Zoccolan/AFP/Getty Images

Michelin tyre employees, mostly from the Joue-les-Tours plant, run away from tear gas spread by security member as try to pull out the grid of the company headquarters where an extraordinary commitee is taking place on Wednesday in Clermont-Ferrand, central France.

3A McLaren Mercedes technician check tires in the paddock, at the Catalunya racetrack in Montmelo, Spain, Thursday, May 9, 2013. The Formula one race will be held on Sunday.

Manu Fernandez/AP

A McLaren Mercedes technician checks tyres in the paddock at the Catalunya racetrack in Montmelo, Spain, on Thursday. The Formula One race will be held on Sunday. Read more