Fifty-something couch potato wants to ride 20-25 miles over hill and dale with youthful, energetic son. Would like a bike that can get me up the hills without straining my lower back. If I ride twice a month, that would be great. It might even inspire me to ride more often.

Budget is about $1,300 -$1,500 but not strict.

Suspect I want triple gearing in front, carbon forks and drop handlebars. Is a carbon frame worth paying up for?

Suggestions please.

Thanks in advance.