Dawes Kick back two 501
We owned a Kickback two as our first serious tandem after hiring when on holidays. Had several years of great service from it and even did a cycle tour from Somerset to London over 5 days with it laden with our overnight gear. It must be quite old now though so if you have found a good one that must be unusual. We only paid £325 it was in fab unused condition and must have been back around 2005.