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The Austin track underwentextensive work in January, with the reinforcement of the ground and thelaying of new asphaltin thefirstandthird sectors. The unevenness will therefore be less evident, with obvious benefits also in braking thanks to thegreater grip.
There are 20 total turns, 12 left and 8 right. The most challenging is turn 12!
Each lap the MotoGP ridersuse the brakes 10 times, the same number as at the Portimao circuit, which is, however, almost a kilometer shorter. At the Circuit of the Americas thebrakes are on for 37 seconds every lap. Only Silverstone and Sepang with 38 seconds and Losail with 40 seconds boast a higher value.
The track alternates between high speeds and slow corners. Brake usage times also vary considerably, with values ranging from 1.5 to 6.8 seconds. From the start to the checkered flag each driver exerts a load on the lever of almost 10 quintals.
Of the10 braking sections of the Circuit of the Americas,3 are classified as demandingon the brakes, the same number are of medium difficulty, while the remaining 4 have a slight impact on the braking systems. The hardest of all isat turn 12. The 323 meters of braking entail a load of 5.6 kg on the lever and a deceleration of 1.5 g while the pressure of the Brembo HTC 64T brake fluid reaches 12.1 bar!
