Extending the swing arm can increase the wheelbase of the motorcycle, which can enhance straight-line stability. This can be particularly useful in drag racing or when trying to keep the front wheel down during acceleration.

A longer wheelbase can provide better traction, especially in high-horsepower motorcycles. This can help improve traction during hard acceleration.

Swing arm extensions allow for customization of the motorcycle's appearance and performance. Riders can tailor the bike to their preferences, giving it a unique look and feel.