1956 Speedway National League  The 1956 National League Division One was the eleventh post-war season of the highest tier of motorcycle speedway in Great Britain. The league consisted of seven teams after the West Ham Hammers ceased competitive speedway racing at the end of 1955. Poole Pirates came up from the second tier to replace them. Match line-ups were increased to eight riders after a single season with seven riders. Wimbledon won their third successive National League Championship. The 1956 National Trophy was the 19th edition of the Knockout Cup. The Trophy consisted of two stages; stage one was for the second tier clubs, stage two was for the top tier clubs. Wimbledon won the second and final stage and were therefore declared the 1956 National Trophy champions. List of United Kingdom Speedway League Champions