If you've ever attended a Motocross race and heard the throaty growl of powerful four-stroke dirt bikes as the riders navigate the twists, turns, and jumps, it's hard to fathom a world where that ...

Jonathan Rea has taken his first victory for Yamaha, although it came on a YZ450F. Rea was taking part in the champions’ charity dirt bike race at the EICMA show in Milan, which also featured ...