In 2005, tyre changes were disallowed in Formula One, therefore the compounds were harder as the tyres had to last the full race distance of around 300 km (200 miles).
En 2005, prohibiuse o cambio de pneumáticos na Fórmula Un, polo tanto, os compostos eran máis duros xa que os pneumáticos tiñan que durar a distancia de carreira (uns 300 km).