While using belts in motorcycle engines can have certain advantages, there are also a few disadvantages compared to traditional chain-driven systems. Here are some potential drawbacks of using belts in motorcycle engines:
Limited torque capacity: Belts generally have a lower torque capacity compared to chains. This can be a limitation in high-performance motorcycles or applications that require transmitting high levels of power. Chain-driven systems are often preferred for their ability to handle greater torque loads.
Limited customization: Chains allow for easier customization of gear ratios and sprocket sizes, enabling riders to fine-tune their motorcycle's performance characteristics. Belts, on the other hand, often have limited options for sprocket sizes and customization, which may restrict the ability to optimize performance for specific riding preferences.
Higher cost and availability: Belts can be more expensive to replace compared to chains. They may also have limited availability, depending on the specific motorcycle model. Chains, on the other hand, are more common and readily available in various sizes and configurations.
Increased complexity during installation: Installing a belt-driven system can be more complicated compared to a chain-driven system. It may require specialized tools and expertise to properly tension and align the belt, as well as to install the necessary pulleys and tensioners. Chain-driven systems are relatively simpler to install and adjust.
Limited durability in certain conditions: Belts may be less durable in certain environmental conditions, such as extreme heat or exposure to abrasive debris. While modern belt materials have improved durability, they may still be more susceptible to damage from excessive heat, oil contamination, or impact compared to chains. Chains tend to be more robust and resilient in harsh operating conditions.
Reduced ability for off-road applications: Belts may be less suitable for off-road or dirt bike applications. They can be more prone to damage from rocks, mud, or debris encountered in off-road riding, leading to increased maintenance and potential belt replacement.
It's important to note that despite these disadvantages, belt-driven systems have their own set of advantages, such as lower noise and vibration levels, reduced maintenance requirements, and smoother power transmission. The choice between belts and chains ultimately depends on the specific motorcycle application, performance requirements, and personal preferences of the rider.