Age: 29

Occupation: Human  Resources Adviser for Oxfam

Interests: Pretty much anything except cycling

She says: If anyone has any tips on fitting an armchair and telly to the back of a tandem, please get in touch.

Ben 'king of...not much, actually' Casemore

Age: 30

Occupation: Management Consultant

Interests: Avoidance of physical exertion

He says: Riding the tandem is much harder work than I was expecting.  It feels as though I'm towing a trailer.  What am I doing wrong?