WD-40 for Motorcycle Chains: Is It a Good Idea?

Maintaining your motorcycle chain is crucial for optimal performance and longevity. A well-lubricated chain reduces friction, minimizes wear, and ensures smooth power delivery. Many riders swear by dedicated chain lubricants, while others reach for the ubiquitous WD-40. But is WD-40 for motorcycle chains a suitable choice? This article delves into the pros and cons of using WD-40 on your motorcycle chain, providing you with the information you need to make an informed decision.

Understanding Motorcycle Chain Lubrication

Before we address the WD-40 question, let’s clarify the purpose of motorcycle chain lubrication. A motorcycle chain endures significant stress, exposed to dirt, grime, water, and extreme temperatures. Proper lubrication serves several key functions:

• Reduces Friction: Minimizing friction between the chain’s rollers, pins, and side plates.
• Prevents Wear: Protecting the chain from premature wear and extending its lifespan.
• Displaces Water: Preventing rust and corrosion.
• Cleans: Washing away dirt and debris.

Traditional motorcycle chain lubricants are formulated to be thick and sticky, adhering to the chain even at high speeds and temperatures. They typically contain additives that provide enhanced protection against wear, rust, and corrosion.

What is WD-40?

WD-40 is a multi-purpose product known for its water displacement (hence the “WD”) and lubricating properties. It’s widely used in households and workshops for various tasks, including loosening rusted bolts, cleaning surfaces, and preventing corrosion. However, its primary function is not as a long-term lubricant.

The Controversy: WD-40 on Motorcycle Chains

The use of WD-40 for motorcycle chains is a hotly debated topic among riders. Some argue that it’s a convenient and effective cleaner, while others strongly advise against it. Let’s examine the arguments from both sides.

Arguments in Favor of WD-40

• Cleaning Properties: WD-40 excels at dissolving grease, grime, and old lubricant. It can effectively clean a dirty motorcycle chain before applying a proper lubricant.
• Water Displacement: Its water-displacing properties can help prevent rust and corrosion, especially after riding in wet conditions.
• Accessibility: WD-40 is readily available at most hardware and automotive stores.
• Short-Term Lubrication: It does provide some lubrication, which can be helpful in a pinch if you don’t have chain lubricant readily available.

Arguments Against WD-40

• Not a Long-Term Lubricant: This is the most significant drawback. WD-40 is a light oil that evaporates quickly. It doesn’t provide the long-lasting lubrication needed for a motorcycle chain.
• Can Dissolve Grease: While its cleaning properties are beneficial, WD-40 can also dissolve the grease inside O-ring, X-ring, or Z-ring chains, potentially damaging these critical components. These chains rely on the grease sealed inside the rings for lubrication.
• Attracts Dirt: Because it’s a relatively thin oil, WD-40 can attract dirt and grime, creating a grinding paste that accelerates chain wear.
• Not Designed for High-Stress Environments: Motorcycle chains operate under extreme conditions of heat, pressure, and exposure. WD-40 is not formulated to withstand these conditions.

The Verdict: Use WD-40 with Caution

The consensus among most motorcycle experts and experienced riders is that WD-40 should be used sparingly and with caution on motorcycle chains. It’s acceptable as a cleaner to remove old lubricant and grime, but it should never be used as a primary or long-term lubricant.

If you choose to use WD-40 to clean your motorcycle chain, follow these steps:

1. Apply WD-40 to the chain and let it sit for a few minutes to dissolve the dirt and grime.
2. Use a chain brush or a rag to scrub the chain thoroughly.
3. Wipe the chain clean with a dry rag.
4. Immediately apply a high-quality motorcycle chain lubricant.

Remember, the key is to remove the WD-40 completely and apply a proper chain lubricant afterward. Failing to do so will leave your chain vulnerable to wear and corrosion.

Alternatives to WD-40 for Motorcycle Chain Lubrication

Numerous dedicated motorcycle chain lubricants are available, each designed for specific riding conditions and chain types. Here are some popular alternatives:

• Chain Wax: Provides excellent protection against water and dirt. It tends to be less messy than oil-based lubricants.
• Chain Lube (Oil-Based): Offers superior lubrication and penetration. It’s suitable for high-performance motorcycles and demanding riding conditions.
• Dry Lube: A Teflon-based lubricant that dries to a waxy film. It’s ideal for off-road riding as it doesn’t attract as much dirt.

When choosing a motorcycle chain lubricant, consider the type of chain you have (O-ring, X-ring, or standard), your riding style, and the weather conditions you typically encounter. [See also: Motorcycle Chain Maintenance Tips] Always follow the manufacturer’s recommendations for lubrication intervals and product selection.

Proper Motorcycle Chain Maintenance: Beyond Lubrication

Lubrication is just one aspect of proper motorcycle chain maintenance. Regular cleaning and adjustment are also essential for extending chain life and ensuring optimal performance. Here’s a brief overview:

• Cleaning: Clean your chain regularly to remove dirt, grime, and old lubricant. Use a chain cleaner or kerosene, followed by a thorough drying.
• Adjustment: Check your chain’s slack regularly and adjust it according to your motorcycle’s owner’s manual. A loose chain can damage the sprockets and swingarm, while a tight chain can cause excessive wear and stress.
• Inspection: Inspect your chain for signs of wear, such as stiff links, rust, or excessive stretching. Replace the chain and sprockets as a set when necessary.

Conclusion: Make Informed Decisions

While WD-40 can be a useful tool for cleaning your motorcycle chain, it should not be used as a primary lubricant. Its short-term lubricating properties and potential to damage O-ring chains make it a less-than-ideal choice. Invest in a high-quality motorcycle chain lubricant and follow a regular maintenance schedule to keep your chain in top condition. By making informed decisions about chain lubrication and maintenance, you can ensure smooth riding, extend the life of your chain, and save money in the long run. Ultimately, understanding the purpose of lubrication and the limitations of products like WD-40 will allow you to maintain your motorcycle chain effectively.