Noun
supercross (uncountable)
A sport in which high-performance off-road motorcycles are raced on an artificially made dirt track consisting of steep jumps and obstacles.
In sporting news, Kurri Kurri rider Chad Reed won his second world supercross title, and Kurri Kurri Junior Motorcycle Club added another name to its long list of state champions when 11-year-old Josh Pickering won a NSW junior dirt track title. Source: Internet
Last year, the 25-year-old was just a race away from winning his first 450cc supercross title. Source: Internet