Huppert is a cycling safety campaigner and organised and spoke at a parliamentary debate on the subject, as well as passing a motion at the 2013 Liberal Democrat Conference on the subject. His support of the principle of "Proportionate liability" has led to debate in his Cambridge Constituency and nationally. Huppert was named one of the most influential people in UK cycling by magazine Bikebiz and was awarded road safety organisation Brake's Road Safety award in March 2013 for his campaign on 20 mph speed limits.
