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It is impossible to quantify the number of off-road leisure facilities available for use by mini-bikes in the UK. Anecdotal evidence indicates that a number of commercial kart tracks (there are around 100 such tracks in the UK) are offering their facilities for such use. However safety concerns mean the Auto-Cycle Union (ACU)—the national governing body for motorcycle sport—will not licence such tracks and therefore ascertaining how many offer such services is simply not possible.