You've probably already noticed that many motocross riders lean forward at the gate just before the start of the race with their whole body weight over the handlebars and adjust something on their machine whilst doing so. They are using a 'holeshot device'.

This holeshot device consists of a holder with a spring-loaded button mounted on the guard of the bike's forks and a metal collar, located on the yoke. To activate the device, the rider simply compresses the front forks enough to manually engage the button in the metal collar without it jumping out. This shifts the centre of gravity, the front of the bike is much lower.

The aim is to prevent the front wheel from rising up at the start, the rider can control his machine better and apply full throttle for longer. Once the forks are compressed for the first time after starting, under braking or when riding over bumps, for example, the button automatically releases from the metal collar and is pulled back into the motorcycle's forks guard, preventing it from accidentally re-engaging.