not freewheeling?

turbo1191 Posts: 501
edited November 2012 in Workshop
just got myself a new defy 1 composite, comes with ultegra.. ordered it over internet and pieced it together. for some reason it is not freewheeling. its as if the rear cassette wont move the opposite way. im not a noob and i know how to assemble things but is there something i have done wrong? Ive checked that the skewer isnt too tight.. can anyone give me any pointers? :?