The 2020 French MotoGP Grand Prix according to Brembo

10/6/2020

 A guide to the Brembo braking systems in the premier class, and their use on the Le Mans circuit

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According to the Brembo technicians who work closely with all the MotoGP World Championship riders, the Le Mans circuit is a moderately demanding circuit for the brakes. On a difficulty index scale of 1 to 5, it earned a 3, the lowest score of all the tracks of this year, along with Misano Adriatico and Cheste. 


The environmental conditions of October might convince the riders to use carbon discs with a low braking band, to ensure the right operating range in terms of temperature. Even in the event of rain, the majority of the riders will probably opt for carbon rather than steel. ​


 


Brembo carbon in MotoGP, whatever the conditions​​



Over the last three years, Brembo has done away with a long-standing taboo: since carbon was introduced in the premier class, it had always been set aside in rainy situations in favor of steel discs. To ensure a good friction coefficient, carbon needs to reach a temperature of at least 250 °C (482 °F) and, until recently, this was somewhat difficult in wet and rainy conditions. 


The carbon developments made by Brembo have allowed the operating temperature range to be widened, however. This, along with the enhanced performance of the engines and tires, has boosted the temperature of the discs even in the rain, meaning that steel has largely fallen by the wayside. ​


 
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Brake use during the French MotoGP Grand Prix​​


On every lap of the Le Mans circuit, the riders use their brakes 9 times for a total of 31 seconds - no small thing, given that this is the second shortest track in the 2020 World Championship. The braking system is called on for 34% of the race, equaling Jerez and Misano Adriatico. 


On 8 of the 9 braking sections of the French track, the riders are subject to a deceleration of at least 1 g, and on 5 of these the value is 1.2 g or higher. On 3 bends, the braking system pressure exceeds 10 bar. The overall load exerted by each rider on the brake lever from start to finish is extremely high: 975 kg.

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The most demanding braking section of the French GP ​ ​


Of the 9 braking sections at the Le Mans circuit, 2 are classified as demanding on the brakes, 5 are of medium difficulty and the remaining 2 are relatively light. 


The most demanding braking section for MotoGP is on bend 9: the bikes go from 295 km/h to 108 km/h (183 to 67 mph) by braking for 4.5 seconds, while the brake fluid pressure reaches 13.6 bar. The riders exert a load of 6.4 kg (14 lbs) on the brake lever, are subjected to 1.5 g deceleration, and in the meantime cover a distance of 239 meters (261 yds).


 


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Brembo S.p.A. | P.IVA 00222620163

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