The Rhein-Main Arena or Speedway Arena Diedenbergen is an 6,500 capacity motorcycle speedway and Flat track facility in Hofheim am Taunus, Germany. The track is located on the Wildsachsener Str road, on the northern outskirts of the village Diedenbergen and south west outskirts of Hofheim am Taunus. The track hosts the speedway team MSC Diedenbergen who race in the German Team Speedway Championship.