You should be able to find loads of routes around there, Spent some time at Clecy which is nearby, and a few weeks just N of Thury Harcourt last year. Was on my Solaris and it was a perfect area for it.
Got most of my routes either from IGN local maps, or from Utagawa site.
Not much round there is too technical, mostly just miles of old byways and lanes with no gates 🙂
http://www.visugpx.com/?i=1375731727
http://www.utagawavtt.com/randonnee-vtt-gps-results?region=14&page=2
Oh,and the tourist offices are great and will often have leaflets with routes, particularly Pont d’Ouilly and Thury-Harcourt