A double-sided swing arm on a motorcycle refers to a design where both sides of the swing arm are visible and connected to the rear wheel. This design is commonly found in sportbikes and some cruisers. Here are the advantages and disadvantages of having a double-sided swing arm:
Advantages:
Stiffness and Stability: Double-sided swing arms tend to provide greater stiffness and stability compared to single-sided swing arms. This can contribute to improved handling, especially during aggressive cornering and high-speed riding.
Symmetrical Appearance: The double-sided swing arm design offers a symmetrical and visually appealing look. It can enhance the overall aesthetic of the motorcycle, especially from the rear, as both sides of the swing arm are visible.
Ease of Maintenance: Double-sided swing arms generally offer easier access to the rear wheel, drive components, and suspension linkage. This can simplify maintenance tasks, such as wheel removal, chain adjustment, and rear suspension servicing.
Increased Mounting Options: The presence of two swing arm sides provides additional mounting points for components like exhaust systems, rearsets, and other accessories. This flexibility allows for more customization possibilities.
Disadvantages:
Increased Weight: Compared to single-sided swing arms, double-sided swing arms tend to be heavier due to the extra material and components required to support both sides. The added weight can slightly impact acceleration and overall performance.
Reduced Ground Clearance: Double-sided swing arms often have a larger profile, which can lead to reduced ground clearance during aggressive cornering. This limitation might affect the motorcycle's ability to lean over at extreme angles.
Cost and Complexity: Double-sided swing arms generally involve more components and intricate manufacturing processes, making them more expensive to produce. As a result, motorcycles with double-sided swing arms might have a higher purchase price compared to those with single-sided swing arms.
Limited Wheel Access for Tire Changes: The design of a double-sided swing arm can make tire changes slightly more time-consuming and challenging compared to single-sided swing arms. Accessing and removing the rear wheel might require additional steps and effort.
It's worth noting that the advantages and disadvantages of swing arm designs can vary depending on the specific motorcycle model and its intended purpose. Some riders prioritize aesthetics, while others focus on performance and handling characteristics. Ultimately, the choice of swing arm design depends on individual preferences and priorities.