The UCI emulated the IAAF in 1947 by requiring the NCA to disclaim Northern Ireland, expelling it when it refused. In 1949, several clubs broke away from the NCA to form Cumann Rothaíochta na hÉireann (CRE), which would restrict its area of jurisdiction to the Republic of Ireland. The CRE was recognised by the UCI, as was the Northern Ireland Cycling Federation (NICF), formed the same year and linked to the British Cycling Federation. The CRE and NICF co-operated and organised the Tour of Ireland, which attracted fewer Irish cyclists than the Rás Tailteann but more from abroad. A joint CRE-NICF Ireland team competed in international events, from which the NCA was excluded. Rogue NCA teams joined the 1955 amateur world road race championship and the 1972 Olympics road race in protest at their exclusion.