Using WD-40 on a motorcycle chain is a subject of debate among riders and experts. While WD-40 can offer temporary lubrication and some cleaning benefits, it is not specifically designed as a long-term chain lubricant. Here are a few reasons why using WD-40 on a motorcycle chain can be problematic:
Insufficient lubrication: WD-40 is primarily a water-displacing spray, and while it does offer some lubrication properties, it tends to be thin and not durable enough to provide adequate lubrication for a motorcycle chain, especially under high-speed and high-stress conditions. Motorcycle chains require a lubricant specifically designed for the purpose, one that can adhere to the chain and withstand the forces involved in riding.
Attraction of dirt and debris: WD-40 has a relatively low viscosity, meaning it is relatively thin and can attract dirt, dust, and other debris present in the environment. This can result in an increased buildup of contaminants on the chain, which can accelerate wear and potentially cause damage to the chain and sprockets.
Chain fling-off: The low viscosity of WD-40 means it can easily be thrown off the chain during riding, leading to reduced lubrication and increased messiness. This can leave the chain exposed and prone to faster wear and corrosion.
Instead of WD-40, it is generally recommended to use a proper motorcycle chain lubricant. These lubricants are specifically formulated to provide superior lubrication, resist fling-off, and offer better protection against corrosion and wear. They typically have higher viscosity and better adhesive properties, ensuring the lubricant stays on the chain for a longer time and provides the necessary protection.
Regular maintenance of the motorcycle chain is essential for optimal performance and longevity. This includes cleaning the chain with a suitable cleaner and applying a dedicated motorcycle chain lubricant as per the manufacturer's recommendations.