lots to see and do, I'll just put out some routes you might enjoy riding...
http://goo.gl/maps/YMS91http://goo.gl/maps/ZlOjJRiding south thru Allenspark on 7, take a right (south) on 72 - that's the Peak to Peak Hwy and runs N-S all the way down to Central City/Blackhawk or Idaho Springs.
All of the canyons that cross E-W to the front range are good....46 (Golden Gate), 72 (Coal Creek), Lefthand Cyn, and 7 (S. St. Vrain Cyn)
I didn't put in 119 from Nederland to Boulder - it's a good canyon, but crowded with traffic and can be heavily patrolled.
My personal favorites are Golden Gate and S. St. Vrains down to Lyons.
34 and 36 out of Estes are busy, lots of RV traffic, etc.