Brembo unveils the 2019 Americas MotoGP

4/9/2019

 An in-depth look at the premium class' use of braking systems on the Austin circuit

​​​​​Following the event in South America, MotoGP is moving onto North America for the 3rd race of the 2019 World Championship scheduled for April 12 to 14 at the Circuit of the Americas (Austin, Texas). The track was designed by German architect Hermann Tilke and is one of the few circuits in the world to host both the MotoGP World Championship and Formula 1: the single-seaters register a lap time half a minute lower than that of the motorcycles.

Some stretches on the track were inspired by famous corners on historic circuits. The Texan circuit stands out for the intimidating incline on the straightaway leading to the first left-hand turn. In all, there is a difference of 41 meters (135 feet) between the lowest and highest points on the track, which makes it easy to imagine what might happen if the riders make a mistake in braking on the downhill stretch.

The Austin track poses a mid-level challenge on the braking systems. According to Brembo technicians, who assist all of the MotoGP riders, the Circuit of the Americas earned 3 points on a scale of 1 to 5. This is exactly what the tracks at Losail and Termas de Rio Hondo registered, but at Jerez, where the race will be held in three weeks, the score goes up to 4.​


 

The demand on the brakes during the GP

Even though it isn't the longest track in the World Championship, the Circuit of the Americas has the most braking sections per lap: 12.

The riders use​ their brakes for 37 seconds per lap, the second highest value of the championship after the 39 seconds of Sepang.

There are four corners where the riders change direction and brake just what it takes to shave off 35 km/h (22 mph), which reduces the average peak deceleration per lap.

The deceleration on these curves varies between 0.5 G and 0.7 G, which explains the average peak of 0.98 G, the second lowest value in the World Championship after 0.95 G of Sachsenring.

Summing up all of the force applied by a rider on the Brembo brake lever from the starting line to the checkered flag, the result comes in at more than 7 quintals and a half.

Practically speaking, that means a rider has to apply about 36 kg (79 lbs) of force every 2 minutes​.

 

 
 

The most demanding braking sections

Of the 12 braking sections at the Circuit of the Americas, 3 are classified as demanding on the brakes, one is of medium difficulty, and the remaining 8 pose only a light challenge on the braking systems.

Curve 12 is the toughest of them all: the bikes enter the corner going over 339 km/h (211 mph) and they brake for 6.3 seconds to go down to 63 km/h (39 mph). The 323 meters (1,060 feet) of braking is the second highest value of the World Championship ​and leads to an average deceleration of 1.5 G.

At the first corner after the finish line, the load on the Brembo master cylinder lever (5,8 kg, 12,8 lbs vs 6,1 kg, 13,4 lbs at turn 12) and the pressure on the Brembo HTC 64T brake fluid, which reaches 12.5 bar are also very high.

Yet the riders are going slower when they start to brake, 302 km/h (188 mph), and they push continuously on the aluminum Brembo calipers for 5.6 seconds.

Turn 11 ​requires a load of 4.7 kg (10.4 lbs) on the lever, but the braking distance is 200 meters (656 feet) shorter and the deceleration is 1.4 G. This value is still higher than the 0.18 G in deceleration a Porsche 911 GT3 RS 4.0 experiences when going from 100 km/h (60 mph) to 0 km/h.


 

Brembo Performance

In the MotoGP of the Americas, the Brembo brakes have monopolized the podium in all six of the races contested.

Marc Marquez was the winner every time with Honda, which also won second place twice and third place once with Dani Pedrosa.

Yamaha placed second 3 times and third twice. A second place and two third places for Ducati.​


 

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

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