How fast do the french bullet trains go?

French bullet trains, known as TGV (Train à Grande Vitesse), typically operate at speeds of up to 320 km/h (200 mph) on dedicated high-speed rail lines. Some trains have reached speeds of 574.8 km/h (357.2 mph) during test runs, setting world records. However, regular service speeds are usually around 300 km/h (186 mph) to ensure safety and efficiency.