A single-sided swingarm, also known as a single-sided swingarm or a "singleside" swingarm, is a type of swingarm design used in motorcycles. Unlike the traditional double-sided swingarm, which uses two arms on each side of the rear wheel, a single-sided swingarm uses a single arm on one side of the wheel. The purpose of a single-sided swingarm can be attributed to several advantages it offers:
Wheel Changes: One of the primary advantages of a single-sided swingarm is the ease of wheel changes. With a traditional swingarm, removing the rear wheel typically involves the removal of the chain, rear brake caliper, and rear axle. In contrast, a single-sided swingarm allows for quick and easy wheel removal without the need to disassemble additional components. This can be particularly beneficial in racing or touring scenarios where rapid tire changes or maintenance are required.
Showcasing the Rear Wheel: Single-sided swingarms often have an aesthetic appeal as they expose the rear wheel on one side, allowing it to be more prominently displayed. This design can be visually striking and is often associated with high-end or sporty motorcycles.
Weight Reduction: While not always the case, single-sided swingarms can potentially contribute to weight reduction in the motorcycle's rear end. By using a single arm instead of two, the overall weight of the swingarm assembly can be reduced, resulting in improved handling and maneuverability.
Maintenance Accessibility: Single-sided swingarms can provide better access to the rear suspension and other components for maintenance purposes. The open design allows mechanics or owners to easily inspect, service, or replace rear shocks, linkages, or other parts without the constraints of a double-sided swingarm.
It's worth noting that single-sided swingarms are not universally used across all motorcycles and are more commonly found in specific motorcycle segments, such as sportbikes, some adventure bikes, or high-end motorcycles. Ultimately, the choice of swingarm design depends on factors like the intended use of the motorcycle, engineering considerations, and the design goals of the manufacturer.