Superbike manufacturers like KTM and Ducati choose to use twin-cylinder engines for various reasons, even though they have the capability to produce motorcycles with four-cylinder engines like BMW. Here are some factors that influence their decision:
Design Philosophy: KTM and Ducati have a distinct design philosophy and brand identity. Twin-cylinder engines are often associated with a unique character and sound that aligns with their brand image. They prioritize factors such as lightweight, compactness, and agility, which twin-cylinder engines can provide.
Power and Torque Characteristics: Twin-cylinder engines offer a different power delivery compared to four-cylinder engines. They tend to provide strong low-end and mid-range torque, which can enhance acceleration and responsiveness, especially in street and track situations where immediate power delivery is desirable. This characteristic aligns well with the riding style and requirements of superbikes.
Weight and Packaging: Twin-cylinder engines are generally lighter and more compact than their four-cylinder counterparts. This weight advantage can contribute to better handling, maneuverability, and overall performance of the motorcycle. It allows for a more centralized mass distribution, which can improve the bike's agility and responsiveness.
Cost Considerations: Twin-cylinder engines are often simpler in design and require fewer components compared to four-cylinder engines. This can result in lower production costs, which can make the motorcycles more accessible and affordable for a broader range of customers. It also allows manufacturers to focus on other areas of performance improvement.
It's important to note that different manufacturers have different engineering priorities and target markets. While KTM and Ducati have found success with twin-cylinder engines, other manufacturers like BMW prefer the characteristics and advantages offered by four-cylinder engines. Each approach has its own merits and appeals to different riders with varying preferences and requirements.