Leaving Versailles Rive-Gauche train station at 9AM. The route will go via Châteaufort and Chevreuse and return the same way.
Medium-Fast pace ride around 28kmh average. Distance will be around 80KM.
Here is the RER C schedule: http://www.transilien.com/contents/fr/Docs---PDF/Fiches-horaires/hiver2013/C-HIV14-D72-SD-version0403.pdf
We'll be taking this ride at a fairly fast pace. If you're unsure whether you can handle it please contact us in advance. Its best to build up your fitness on slower rides before trying the faster rides.