It is hot at Brno. It was hot at Assen, it was hot at the Sachsenring, and it is positively scorching at Brno. Air temperatures are at a relatively bearable 34°C, but the asphalt tentatively broke the 50°C during FP2. That is officially what is known colloquially as a scorcher, testing riders, teams, and above all, tires on the first day of practice at Brno. Where last year, the riders concentrated on the soft and the medium Michelins, on Friday, the MotoGP riders spent their time assessing the medium and the hard. The downside of forcing Michelin to choose tires for the entire season back in February is that sometimes, their crystal ball fails them, and the weather deviates wildly from what might reasonably be expected. The heatwave which has Europe in a vice-like grip is just such a case.
There are upsides to the heat, though they are perhaps unexpected. There were just four fallers at Brno on Friday across all three classes, less than half the number from last year, a third of the number in 2016, and a massive five and a half times fewer than the 22 crashers in 2015. It's hot and dry, so the tires will definitely grip.
Sometimes a little too much, as Jorge Martin found to his dismay in Moto3 FP1. The Spaniard managed to highside his Del Conca Gresini Honda Moto3 bike and break the radius bone in his left wrist, ruling him out of action for Sunday's race, and making him doubtful for next week's Austrian round at the Red Bull Ring. Martin had steadily built up a lead over Marco Bezzecchi in the Moto3 championship in the last two races, only to throw it away with a huge mistake at Brno. There may only have been four crashes on Friday, but one of them was very costly indeed.
In the MotoGP class, the timesheets tell a rather deceptive tale. Dani Pedrosa finished the day faster, and digging into the timesheets, he looks quick on old tires and in race trim. Danilo Petrucci was second quickest overall, and also showed solid pace. But the Pramac Ducati rider was convinced that the riders with real race pace were behind him, Andrea Dovizioso in fifth, and Marc Márquez in tenth. Not where you might necessarily expect to find the fastest riders on the day.