WD40 on Motorcycle Chains: The Truth, Myths, and Alternatives
The question of whether to use WD40 on motorcycle chains is a debate as old as motorcycles themselves. While WD40 is a household name and a staple in many garages, its suitability for motorcycle chain lubrication is hotly contested. This article aims to dissect the arguments, debunk the myths, and provide a clear understanding of the pros, cons, and better alternatives for maintaining your motorcycle’s chain. We’ll delve into the chemical properties of WD40, explore its practical applications, and ultimately, help you make an informed decision about its use on your prized ride.
Understanding WD40: What It Is and What It Isn’t
WD40 stands for Water Displacement, 40th formula. Developed in 1953 by the Rocket Chemical Company, its primary purpose was to prevent corrosion by displacing water. It’s a blend of various hydrocarbons, including mineral oil, solvents, and propellants. This unique formulation gives WD40 its versatility, making it effective for tasks like loosening rusty bolts, cleaning surfaces, and, yes, displacing water. However, it’s crucial to understand that WD40 is not primarily designed as a lubricant. Its lubricating properties are minimal and short-lived, especially under the high-stress conditions a motorcycle chain experiences.
The Argument Against Using WD40 on Motorcycle Chains
The core argument against using WD40 on motorcycle chains boils down to its lack of long-term lubrication. While it might initially make the chain appear smoother and quieter, WD40 quickly evaporates, leaving the chain vulnerable to wear and tear. Furthermore, the solvents in WD40 can dissolve the grease packed inside the chain’s rollers and pins, accelerating wear and potentially leading to premature chain failure. This is a significant concern, as a worn or broken chain can be dangerous and expensive to replace.
- Short-lived Lubrication: WD40‘s primary function isn’t lubrication, so its effects are temporary.
- Grease Dissolving Properties: The solvents can wash away crucial grease within the chain.
- Increased Wear and Tear: Lack of proper lubrication leads to accelerated wear.
The Argument For Using WD40 (With Caveats)
Despite the strong arguments against it, there are specific situations where WD40 can be useful on a motorcycle chain. Its water-displacing properties make it excellent for cleaning a chain after riding in wet conditions. Removing water prevents rust and corrosion, extending the chain’s lifespan. However, it’s crucial to remember that this should always be followed by proper lubrication with a dedicated chain lube. Think of WD40 as a cleaner, not a lubricant, in this context. Some riders also use WD40 as a quick degreaser before applying chain wax or oil.
Proper Motorcycle Chain Maintenance: A Step-by-Step Guide
Maintaining your motorcycle chain properly is essential for performance, safety, and longevity. Here’s a step-by-step guide to ensure your chain stays in top condition:
- Cleaning: Use a dedicated chain cleaner or kerosene to remove dirt, grime, and old lubricant. Avoid harsh chemicals that can damage the chain’s O-rings or X-rings. WD40 can be used sparingly for initial cleaning, but ensure it’s thoroughly removed afterwards.
- Drying: Allow the chain to dry completely after cleaning. You can use compressed air to speed up the process.
- Lubrication: Apply a high-quality motorcycle chain lubricant specifically designed for your chain type (O-ring, X-ring, or standard). Ensure the lubricant penetrates all the rollers and links.
- Wiping Excess: Wipe off any excess lubricant to prevent it from attracting dirt and grime.
- Inspection: Regularly inspect your chain for signs of wear, such as stiff links, excessive slack, or damaged O-rings.
- Adjustment: Adjust the chain slack according to your motorcycle’s manufacturer’s recommendations.
Alternatives to WD40 for Motorcycle Chain Lubrication
Numerous chain lubricants are specifically formulated for motorcycle chains, offering superior protection and longevity compared to WD40. These lubricants are designed to withstand the high pressures and temperatures experienced by motorcycle chains, providing long-lasting lubrication and protection against wear and corrosion. Some popular alternatives include:
- Chain Wax: Provides excellent water resistance and adheres well to the chain, minimizing fling-off.
- Chain Oil: Offers superior penetration and lubrication, especially in hot weather conditions.
- Dry Lube: Ideal for off-road riding, as it doesn’t attract as much dirt and grime.
The Science Behind Motorcycle Chain Lubricants
Understanding the science behind motorcycle chain lubricants helps appreciate their superiority over general-purpose products like WD40. Motorcycle chain lubricants typically contain a blend of base oils, additives, and tackifiers. The base oils provide the primary lubrication, while the additives enhance specific properties like extreme pressure resistance, corrosion inhibition, and oxidation stability. Tackifiers help the lubricant adhere to the chain, preventing fling-off at high speeds. These specialized formulations ensure that the chain receives optimal lubrication and protection under demanding conditions. [See also: Motorcycle Chain Maintenance Tips]
Debunking Common Myths About WD40 and Motorcycle Chains
Several myths surround the use of WD40 on motorcycle chains. Let’s address some of the most common misconceptions:
- Myth: WD40 is a good all-purpose lubricant for everything.
Fact: While WD40 has some lubricating properties, it’s primarily a water displacer and cleaner, not a long-term lubricant. - Myth: WD40 can restore a rusty chain.
Fact: WD40 can help loosen rust, but it won’t restore a severely rusted chain. Prevention is always better than cure. - Myth: Any lubricant is better than no lubricant.
Fact: While some lubrication is better than none, using the wrong lubricant (like WD40 as a primary lubricant) can do more harm than good.
Real-World Experiences: Rider Testimonials
Many experienced riders swear by dedicated chain lubricants and strongly advise against using WD40 as a primary lubricant. They report that using proper chain lube results in smoother shifting, quieter operation, and longer chain life. Conversely, riders who have used WD40 consistently often report premature chain wear and the need for more frequent replacements. These anecdotal experiences further reinforce the importance of using the right products for the job. [See also: Choosing the Right Motorcycle Chain Lube]
Long-Term Effects of Using WD40 on Motorcycle Chains
The long-term effects of using WD40 as a primary lubricant on motorcycle chains can be detrimental. The lack of proper lubrication accelerates wear and tear, leading to chain stretch, stiff links, and ultimately, chain failure. A worn chain can also damage the sprockets, requiring their replacement as well. Investing in proper chain maintenance products and practices is a much more cost-effective approach in the long run, saving you money on repairs and replacements. Using WD40 sparingly as a cleaner, followed by proper lubrication, is a more sensible approach.
Conclusion: Making the Right Choice for Your Motorcycle Chain
While WD40 has its uses around the garage, it’s generally not recommended as a primary lubricant for motorcycle chains. Its short-lived lubricating properties and potential to dissolve grease make it a less-than-ideal choice. Using dedicated chain lubricants, combined with regular cleaning and maintenance, is the best way to ensure the longevity, performance, and safety of your motorcycle chain. So, the next time you reach for that can of WD40, consider whether it’s the right tool for the job, or if a dedicated chain lubricant would be a better investment for your motorcycle’s well-being. Remember, proper maintenance translates to a safer and more enjoyable riding experience. Don’t compromise on quality when it comes to your motorcycle’s critical components, especially the chain. Choose wisely and ride safely.
