BV25-47 TDF 2025 Extended Start

Another year brings another new Tour de France route through Paris. The 2025 edition introduced a major change with Montmartre being included in the finishing circuit. But, similar to the 2021 route I posted earlier, I cut out the dense city section to turn it into a practical everyday ride.

Stage 21 officially started in Mantes-la-Jolie, though I decided to add a bit more distance—beyond just the ride to the start. The route begins like most rides toward Saint-Germain-en-Laye and Poissy, which means a fair amount of city riding, but that part is unavoidable. Once you pass the château, the urban feel fades and you start following the river north.

On the day of the Tour, we stayed along the river all the way to Mantes-la-Jolie but for this version, I wanted something more interesting, so the route cuts north at Les Mureaux and works its way across farmland and forest toward La Roche-Guyon. As you approach La Roche-Guyon, the views down to the river valley with the chalk cliffs below is always impressive, and the twisting descent back to the river is always fun. You then follow the river next to the chalky cliffs until you reach Mantes-la-Jolie, the offical start town for the stage.

After the race km 0, and with about 100 km already done, you reach a solid Category 4 climb that was new to me and happens to be the biggest climb of the ride. From there, it’s mostly open and fast riding (depending on the wind) as you head back toward Versailles. The Tour often features “the Wall,” and 2025 was no exception, so the route includes it before dropping back to the quai for the familiar run into Paris.

On TV, the Montmartre segment looked incredible, but with traffic, lights, and tourists, it’s not worth adding to the everyday version of the route.

Overall, this route makes for a good mix: a solid ride with the added fun of covering the same roads the pros used.

GPX File