According to the Brembo technicians who work with all the MotoGP riders, the Assen circuit is one of the least demanding circuits for the brakes. On a scale of 1 to 6 it earned a difficulty index of 2, the lowest of the European races, superior only to Phillip Island. In Assen the maximum speed does not exceed 310 km / h but the numerous fast corners guarantee excellent cooling of the braking systems.
MotoGP vs SBK
The Dutch track is very driven, with several fast corners and 10 braking per lap, although in 7 of these the deceleration is below 100 km / h. Each lap, the drivers use the brakes for just under 32 seconds, an identical value to the Portimao track which has a similar length. 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. On the other hand, the g-forces experienced by the drivers are similar, both in the individual curves and throughout the race. For the MotoGP, from the start to the finish each rider exerts a load on the lever of 8.8 quintals.
The most challenging at Turn 1
Of the 10 braking sections, only one is considered on average demanding for the brakes while all the others can be considered low-energy braking. The descent of the Haarbocht corner (curve 1) is the one that involves the greatest effort for the riders and the braking systems: the bikes reach us at 291 km / h and the riders brake for 4.3 seconds in which they travel 213 meters. To reach the 113 km / h required to set the curve, the riders exert a load of 5.3 kg on the lever and undergo a deceleration of 1.5 g.
The focus on the circles
Also for the 2022 season, Marchesini forged magnesium wheels equip two thirds of the bikes on the track in MotoGP, 8 out of 12 teams: the 5-spoke Y and 7-spoke variants are available for both wheels. Since March 2000, Marchesini has been a company of the Brembo group with which it shares the same production site. All the products for MotoGP are descended from 3D multiforging with closed mold and heat treatment and guarantee maximum stiffness and minimum inertia. The weight saving ensured by the Marchesini wheels favors acceleration and maneuverability when changing direction, as well as entering corners with the brakes on, cornering with an inclination of up to 60 ° and exiting corners. The mix of stiffnesses with which they are designed guarantees an optimal tire footprint even for the most demanding lean angles.
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Here is the 2022 calendar of the top class and the championship standings.