Motocross began in the United Kingdom at the turn of the century. In the early 1900s, automotive clubs hosted time trials, which turned into off-road versions called “Scrambles.” The very first official motorcycle Scramble went down in 1924, presumably with wool pants and a lot of British mud flying. For decades, the sport evolved lap by lap as bikes became more powerful and tires improved. There is no argument that the UK invented the sport, but to get to the real heart of modern motocross racing, you have to follow it across the pond to America. This is where MX truly took flight, if only for short, throttle-twisting durations between berms and whoops.