Carrefour de l'Arbre, officially Pavé de Luchin, is a 2.1 km cobbled road in the municipalities of Camphin-en-Pévèle, Baisieux-Sin and Gruson, in the Nord department of Northern France. From Wikipedia
The reigning Tour de France champion demonstrated exceptional form with record-breaking performances on key cobbled sectors, signaling a fierce challenge to Mathieu Van der Poel.