Long time ago beetwin 1994-1998r. was organised race by Jan Kudra (Polish Olimpic Team Member in Tokio w 1964.).
It was very hard interval race for the best of the best race bikers in Poland.
More photos below (Jarosław Adryjanowski no. 46, Krzysztof Kosior no. 9, Mateusz Przyłęcki no. 60):