I think the Novara Carema comes with presta valves. After opening in the valve (unscrewing the valve cap), sometimes you need to break the seal by depressing the top and letting a little bit of air out. Then you can pump. To see a presta valve open, check the top picture from this page in Sheldon Brown's web site: http://www.sheldonbrown.com/brandt/presta-schrader.html