The braking system performance of the MotoE at Assen

The braking system performance of the MotoE at Assen
Performances MotoE brakes at Assen

The braking system performance of the MotoE on the Assen circuit. This weekend the Dutch GP takes place, fourth round there MotoE World Cup 2022. According to Brembo technicians, the Assen circuit falls into the category of circuits that are not very demanding on the brakes. On a scale of one to six, the Dutch circuit has a difficulty rating of two, the lowest in the championship.

The brake performance of the MotoE on the Assen circuit - The Assen circuit hosts the fourth round of the MotoE World Cup, the Dutch GP, scheduled from June 24th to 26th. According to Brembo, whose technicians assist the MotoGP and MotoE, the Assen circuit falls into the category of low demanding circuits for the brakes, with an index of two on a scale where the maximum is six.
The Assen circuit is 4542m lenght with six left-hand and twelve right-hand corners and a final straight of 487m. During a full lap the MotoGP bikes use the brakes in ten corners, for 32 seconds, while for the MotoE they use the brakes for 22.2 seconds. On this track the Superbike competed two months ago: even for the production derivatives there were 10 braking times per lap but the braking time stopped at 25 and a half seconds, thanks to the lower maximum speeds reached.
Of the ten MotoGP braking sections on the Assen circuit, three are classified as demanding on the brakes, while the rest have a slight impact on the braking systems.

Performances MotoE brakes at Assen
Comparison MotoE-MotoGP braking at turn 1 of the Assen circuit

The most complex braking for the MotoGP and MotoE in Assen it is the one at turn one (Haarbocht corner): the MotoGP riders go from around 291 km / h to 113 km / h braking for 4,3 seconds during which they are subjected to 1,5 g of deceleration. The MotoGP bikes travel 213 meters during braking, exerting a maximum load of 5,3 kg on the brake lever.
The MotoE starts braking at 222,3 km/h and slows down to a speed of 98,7 km/h; it covers 155 meters in 3,7 seconds. In practice, the braking time is longer for MotoGP than for MotoE but what changes is the maximum deceleration which for the MotoGP reaches the value of 1,5 g while the MotoE reaches a maximum of 1,2 g.

The brakes of the MotoE in Jerez

The Brembo braking system for the MotoE

The braking system of the MotoE it is derived from MotoGP and Superbike and has been adapted for use on the Ego Corsa. The discs are of the "T-Drive" type in steel while the calipers are the GP4-PR; let's see the details. The front discs are the steel "T-Drive", have a diameter of 336 mm and a thickness of 7,1 mm with a configuration specifically designed for MotoE.
The front caliper is machined from solid aluminum monobloc, model GP4-PR. It is the caliper already used in the MotoGP championship with steel discs up to the 2017 season, when discs of this type were used in the case of wet races. It has 4 titanium pistons with differentiated diameters of 32-36 mm and is operated by a radial pump with a diameter of 19 mm and a displacement of 18 mm.

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