Motorcyclist’s Ari Henning breaks down the myth and mystery about putting WD40 on your motorcycle Chain in this quick video. Below Dirt Bike Test throws out a few gems on how to further aid your chain’s longevity.
Though this is a streetbike, there are plenty of good bits of info here, especially about the right chemicals to use on the chain. But off-road the chain and sprockets are subject to a much harsher environment with all the dirt thrown into the mix. In years of trials and practical experience here are a few pointers to give you a happy chain.
- Lube your chain right after you complete your ride when the chain is warm and the lube will more easily flow into the places it needs to go. Use a proper chain lube here and know which type is best for your conditions. If the chain is wet using a water displacing lubricant like WD40 is better than proper chain lube. It will chase the moisture out instead of sealing it in.
- In dirty conditions you do not really want sticky lube on the chain rollers where it contacts the sprockets. This only attracts abrasive dirt until the lube quickly wears off. Where you really want the lube is between the side plates and underneath the rollers. Be careful how you apply the lube and where. The outside plates of the chain is not where lube is needed. Maybe some rust protection but not lubrication.
- Lube the chain before you wash the bike not after. Remember, you want to keep the water out not seal it in.
- The best location to spray the lube is on the going away (lower) run on the chain and on the inside circumference as the rotation of the chain will work the lube outward. Shooting it in the space behind the last frame rail and before the rear wheel will leave less of a mess on the swingarm, sprockets or frame rails.
- Most chain lubrication on dirt bikes is for keeping the chain corrosion free and moving freely on itself. Modern O-Ring chains do not reduce horsepower when they are cared for and are warmed. Lubrication on the O-rings increases their life which helps them keep grease in and dirt out.
- Avoid spinning the rear wheel backwards if you have a master link clip that may snag on a chain guide. In fact when lubing the chain it is a good time to take a good look at the master link clip too.
3 Responses to “WD40 Chain Myth Busted! Plus Some Chain Love.”
Jimmy Lewis
Most factory prepped race bikes use a riveted master link if this helps you decide which is better.
SteveV
Why lube an o-ring chain? Isn’t the grease sealed inside the rollers? If all you’re doing is lubing the outside for the metal on metal that will only last from the van to the start. Good video and info.
Jimmy Lewis
Mostly to prevent rust on the outside.