models

Coupe, Spider


Intended Use Of Tire

.


mm wide

Tire Width

Following the letter(s) that identify the type of vehicle and/or type of service for which the tire was designed, the three-digit numeric portion identifies the tire's section width/cross section in millimeters.

The indicates that this tire is millimeters across from the widest point when mounted and measured on a specified width wheel. Because many people think of measurements in inches, the mm can be converted to inches by dividing the width in millimeters by 25.4 (the number of millimeters per inch).

mm / 25.4 = NaN"

%

Aspect Ratio

The ratio of the height of the tire's cross-section to it's width. means that the height is equal to % of the tire's width.

Typically, following the three digits identifying the tire's width in millimeters is a two-digit number that identifies the tire's profile or aspect ratio.

The indicates that this tire size's sidewall height (from rim to tread) is 50% of its width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall. The lower the number, the lower the sidewall. We know that this tire size's section width is mm and that its section height is 50% of mm. By converting the mm to inches ( / 25.4 = NaN") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of NaN".

Construction Method

. The R in the size identifies that the tire has a radial construction in which the tire's plies "radiate" out from the center of the wheel. Radial tires are by far the most popular type of tire today representing over 98% of all tires sold.

If the R in the size was replaced with a D (), it would identify that the internal tire body plies crisscross on a diagonal and that the tire has a "bias ply" construction. Tires using this construction are for light truck and spare tire applications.

" wheel

Rim Size

The indicates the tire and wheel diameter designed to be matched together.

Tires that have a rim diameter expressed in inches (, as well as 8, 10, 12, 13, 14,15, 17, 18, 19, 20, 22, 23, 24, 26 and 28) are called "inch rim" sizes. These are the most common types of tire sizes and are used on most cars, minivans, vans, sport utility vehicles and light duty light trucks.

Tires and wheels with unique rim diameters should never be combined with traditional "inch rim" tires and wheels.

Load Range/Ply Rating

This tire has a ply rating of which indicates how much load the tire is designed to carry at it's specified pressure.

Load Index/Service Description

NaNlb load. The tire assigned numerical value used to compare relative load carrying capabilities.

The represents the tire's service description. A service description identifies the tire's load index and speed rating. Service descriptions are required on all speed rated (except for Z-speed rated) tires manufactured since the early 1990s.

Speed Rating

mph. The maximum speed that the tire can sustain for 10 minutes.

Today, the only tires that continue to include the speed rating "in" the tire size () are Z-speed rated tires. In this case, following the two digits used to identify the aspect ratio are the letters ZR to identify the tire's speed rating (Z) and its internal construction (R). Since 1991, all other speed ratings are identified in the tire's Service Description.

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mclaren

McLaren Racing Limited, competing as McLaren Honda, is a British Formula One team based at the McLaren Technology Centre, Woking, Surrey, England. McLaren is best known as a Formula One constructor but has also competed in and won the Indianapolis 500 and the Canadian-American Challenge Cup (Can-Am). The team is the second oldest active team after Ferrari. They are one of the most successful teams in Formula One history, having won 182 races, 12 drivers' championships and eight constructors' championships. The team is a wholly owned subsidiary of McLaren Technology Group.

Founded in 1963 by New Zealander Bruce McLaren, the team won its first Grand Prix at the 1968 Belgian Grand Prix, but their greatest initial success was in Can-Am, where they dominated from 1967 to 1971. Further American triumph followed, with Indianapolis 500 wins in McLaren cars for Mark Donohue in 1972 and Johnny Rutherford in 1974 and 1976. After Bruce McLaren died in a testing accident in 1970, Teddy Mayer took over and led the team to their first Formula One constructors' championship in 1974, with Emerson Fittipaldi and James Hunt winning the drivers' championship in 1974 and 1976, respectively; 1974 also marked the start of a long-standing sponsorship by Phillip Morris' Marlboro cigarette brand.

In 1981, McLaren merged with Ron Dennis' Project Four Racing; Dennis took over as team principal and shortly after organised a buyout of the original McLaren shareholders to take full control of the team. This began the team's most successful era: with Porsche and Honda engines, Niki Lauda, Alain Prost, and Ayrton Senna took between them seven drivers' championships and McLaren six constructors' championships. The combination of Prost and Senna was particularly dominant—together they won all but one race in 1988—but later their rivalry soured and Prost left for Ferrari. Fellow English team Williams offered the most consistent challenge during this period, the two winning every constructors' title between 1984 and 1994. However, by the mid-1990s, Honda had withdrawn from Formula One, Senna had moved to Williams, and the team went three seasons without a win. With Mercedes-Benz engines, West sponsorship, and former Williams designer Adrian Newey, further championships came in 1998 and 1999 with driver Mika Häkkinen and during the 2000s the team were consistent front-runners, driver Lewis Hamilton taking their latest title in 2008.

Ron Dennis retired as McLaren team principal in 2009, handing the former role to longtime McLaren employee Martin Whitmarsh. At the end of 2013, after the team's worst season since 2004, Whitmarsh was ousted. McLaren announced in 2013 that they would be using Honda engines from 2015 onwards, replacing Mercedes-Benz. The team raced as McLaren-Honda for the first time since 1992 at the 2015 Australian Grand Prix. In September 2017, McLaren announced they have agreed an engine supply with Renault Sport for the 2018, 2019 and 2020 seasons.

Wikipedia