Your bike on the train
Several SNCF services (TER intercity, transilien, TGV trains and even European trains) offer the opportunity to bring your bike to Blois by train.
Rules for bikes on the train
You are responsible for your bike (transporting it, handling it, and watching it) throughout the journey. At the station, on the platform and on board, your bike must be hand-held. You can not take your bike on the escalator. Prepare to get off the train in plenty of time so as not to block other passengers.
Trains which allow bicycle transport can be found at www.velo.sncf.com