Motorsport.com has learned that MotoGP tyre supplier Michelin sent an email to all teams during the second round of the 2020 campaign recommending them to scrub the soft rear tyre in Sunday’s warm-up session.
The scrub consists of three laps: a slow out-lap, one fast lap, and then an in-lap.
The idea behind this is that the scrub removes the film from the tyre, and then after it has been left to cool before being put back in the blankets, a chemical reaction occurs in the rubber.
This makes the tyre more heat resistant, with its working range 10 degrees cooler than normal, which increases the durability of the rubber.
Fabio Quartararo, Petronas Yamaha SRT