Home hopes Johann Zarco of Ducati-Pramac and Fabio Quartararo of Yamaha set the pace in the second free practice session for the French MotoGP at the Bugatti Circuit at Le Mans on Friday.
These second tests took place on a dry track after Jack Miller set the fastest time in the first free practice on a wet track earlier.
Zarco was 0.095sec faster than his compatriot Quartararo, while Spain's Maverick Vinales was 0.389sec back in third place also on a Yamaha.
Spain's Marc Marquez of Honda was eighth at 0.885, just ahead of Italy's Valentino Rossi in ninth.
Reigning world champion Joan Mir of Suzuki was third quickest in the morning session but fell twice in the afternoon to finish outside the top 10.
There will be further practice on Saturday morning prior to qualifying on Saturday afternoon.
Timings after first practice
1. Johann Zarco (FRA/Ducati-Pramac) 1:31.747, 2. Fabio Quartararo (FRA/Yamaha) at 0.095, 3. Maverick Vinales (ESP/Yamaha) 0.389, 4. Pol Espargaro (ESP/Honda) 0.390, 5. Franco Morbidelli (ITA/Yamaha-SRT) 0.532, 6. Miguel Oliveira (POR/KTM) 0.549, 7. Jack Miller (AUS/Ducati) 0.614, 8. Marc Marquez (ESP/Honda) 0.885, 9. Valentino Rossi (ITA/Yamaha-SRT) 0.922, 10. Takaaki Nakagami (JPN/Honda-LCR) 0.964