Good job! That's an impressive climb via a single, much less a tandem. I've descended the mountain twice (Bedoin side) and the twists and turns can heat up rims and pads pretty quickly.
BTW, I was in the area last summer and noticed that there is a bike rental place at the foot of the mountain in Bedoin that had a nice Cannondale road tandem for rent, if anyone gets the urge to try riding it. See
http://www.francebikerentals.com/Ren...3/Default.aspx