Take a run to the top of Pikes Peak (14,000 feet) it will be cool at the top so dress a little warmer but the view is amazing.
Also the ride to Estes Park is worth the ride, kind of a cool town to visit in the mountains.
Stay clear of Boulder, yuppie dope smoking college town and the traffic is terrible.
The ride to Cripple Creek is great and close to Manitou Springs. It's an old mining town with lots of casinos.