Tyres

The 2009 division saw the re-introduction of glossy tyres replacing the acclimatized tyres acclimated from 1998 to 2008.

Tyres can be no added than 355 and 380 mm (14.0 and 15.0 in) at the rear, foreground tyre amplitude bargain from 270 mm to 245 mm for the 2010 season. Unlike the fuel, the tyres buck alone a apparent affinity to a accustomed alley tyre. Whereas a roadcar tyre has a advantageous activity of up to 80,000 km (50,000 mi), a Formula One tyre is congenital to endure just one chase ambit (a little over 300 km (190 mi)). This is the aftereffect of a drive to maximise the road-holding ability, arch to the use of actual bendable compounds (to ensure that the tyre apparent conforms to the alley apparent as carefully as possible).

Since the alpha of the 2007 season, F1 had a sole tyre supplier. From 2007 to 2010, this was Bridgestone, but 2011 saw the reintroduction of Pirelli into the sport, afterward the abandonment of Bridgestone. Six compounds of F1 tyre exist; 4 are dry acclimate compounds (hard, medium, soft, and super-soft) while 2 are wet compounds (intermediates for clammy surfaces with no continuing baptize and abounding wets for surfaces with continuing water). Two of the dry acclimate compounds (generally a harder and softer compound) are brought to anniversary race, added both wet acclimate compounds. The harder tyre is added abiding but gives beneath grip, and the softer the converse. In 2009, the glossy tyres alternate as a allotment of revisions to the rules for the 2009 season; slicks accept no grooves and accord up to 18% added acquaintance with the track. In the Bridgestone years, a blooming bandage on the sidewall of the softer admixture was corrective to acquiesce assemblage to analyze which tyre a disciplinarian is on. With Pirelli tyres, the colour of the argument and the ring on the sidewall varies with the compounds. Generally, the two dry compounds brought to the clue are afar by at atomic one specification. This was implemented by the FIA to actualize added apparent aberration amid the compounds and hopefully add added action to the chase if two drivers are on altered strategies. The exceptions are the Monaco GP and the Hungaroring, area bendable and super-soft tyres are brought, because both are conspicuously apathetic and twisty, and so added anchor is required.